40722673 has 4 divisors (see below), whose sum is σ = 42493248. Its totient is φ = 38952100.

The previous prime is 40722653. The next prime is 40722697. The reversal of 40722673 is 37622704.

It is a happy number.

40722673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40722673 - 2¹⁷ = 40591601 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40722653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 885253 + ... + 885298.

It is an arithmetic number, because the mean of its divisors is an integer number (10623312).

Almost surely, 2^40722673 is an apocalyptic number.

It is an amenable number.

40722673 is a deficient number, since it is larger than the sum of its proper divisors (1770575).

40722673 is a wasteful number, since it uses less digits than its factorization.

40722673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770574.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 40722673 is about 6381.4318926084. The cubic root of 40722673 is about 344.0424980171.

Adding to 40722673 its sum of digits (31), we get a palindrome (40722704).

It can be divided in two parts, 40722 and 673, that multiplied together give a triangular number (27405906 = T₇₄₀₃).

The spelling of 40722673 in words is "forty million, seven hundred twenty-two thousand, six hundred seventy-three".