40773921 has 4 divisors (see below), whose sum is σ = 54365232. Its totient is φ = 27182612.

The previous prime is 40773919. The next prime is 40773923. The reversal of 40773921 is 12937704.

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 an interprime number because it is at equal distance from previous prime (40773919) and next prime (40773923).

It is a cyclic number.

It is not a de Polignac number, because 40773921 - 2¹ = 40773919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40773923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6795651 + ... + 6795656.

It is an arithmetic number, because the mean of its divisors is an integer number (13591308).

Almost surely, 2^40773921 is an apocalyptic number.

It is an amenable number.

40773921 is a deficient number, since it is larger than the sum of its proper divisors (13591311).

40773921 is a wasteful number, since it uses less digits than its factorization.

40773921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13591310.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 40773921 is about 6385.4460298400. The cubic root of 40773921 is about 344.1867591670.

The spelling of 40773921 in words is "forty million, seven hundred seventy-three thousand, nine hundred twenty-one".