40723654 has 4 divisors (see below), whose sum is σ = 61085484. Its totient is φ = 20361826.

The previous prime is 40723651. The next prime is 40723673. The reversal of 40723654 is 45632704.

40723654 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.

It is a super-2 number, since 2×40723654² = 3316831990223432, which contains 22 as substring.

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (40723651) 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 as a sum of consecutive naturals, namely, 10180912 + ... + 10180915.

It is an arithmetic number, because the mean of its divisors is an integer number (15271371).

Almost surely, 2^40723654 is an apocalyptic number.

40723654 is a deficient number, since it is larger than the sum of its proper divisors (20361830).

40723654 is a wasteful number, since it uses less digits than its factorization.

40723654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20361829.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 40723654 is about 6381.5087557724. The cubic root of 40723654 is about 344.0452606303.

The spelling of 40723654 in words is "forty million, seven hundred twenty-three thousand, six hundred fifty-four".