40612945 has 16 divisors (see below), whose sum is σ = 51171840. Its totient is φ = 30902400.

The previous prime is 40612933. The next prime is 40612967. The reversal of 40612945 is 54921604.

40612945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40612945 - 2¹⁷ = 40481873 is a prime.

It is a super-2 number, since 2×40612945² = 3298822603146050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6925 + ... + 11365.

It is an arithmetic number, because the mean of its divisors is an integer number (3198240).

Almost surely, 2^40612945 is an apocalyptic number.

It is an amenable number.

40612945 is a deficient number, since it is larger than the sum of its proper divisors (10558895).

40612945 is a wasteful number, since it uses less digits than its factorization.

40612945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4536.

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

The square root of 40612945 is about 6372.8286498226. The cubic root of 40612945 is about 343.7332104196.

The spelling of 40612945 in words is "forty million, six hundred twelve thousand, nine hundred forty-five".