40924561 has 4 divisors (see below), whose sum is σ = 41417712. Its totient is φ = 40431412.

The previous prime is 40924529. The next prime is 40924571. The reversal of 40924561 is 16542904.

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 40924561 - 2⁵ = 40924529 is a prime.

It is a super-3 number, since 3×40924561³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40924571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246451 + ... + 246616.

It is an arithmetic number, because the mean of its divisors is an integer number (10354428).

Almost surely, 2^40924561 is an apocalyptic number.

It is an amenable number.

40924561 is a deficient number, since it is larger than the sum of its proper divisors (493151).

40924561 is an equidigital number, since it uses as much as digits as its factorization.

40924561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493150.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 40924561 is about 6397.2307289952. The cubic root of 40924561 is about 344.6101063407.

The spelling of 40924561 in words is "forty million, nine hundred twenty-four thousand, five hundred sixty-one".