40656045 has 8 divisors (see below), whose sum is σ = 65049696. Its totient is φ = 21683216.

The previous prime is 40656043. The next prime is 40656053. The reversal of 40656045 is 54065604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40656045 - 2¹ = 40656043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40656043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1355187 + ... + 1355216.

It is an arithmetic number, because the mean of its divisors is an integer number (8131212).

Almost surely, 2^40656045 is an apocalyptic number.

It is an amenable number.

40656045 is a deficient number, since it is larger than the sum of its proper divisors (24393651).

40656045 is a wasteful number, since it uses less digits than its factorization.

40656045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2710411.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 40656045 is about 6376.2092970667. The cubic root of 40656045 is about 343.8547616783.

It can be divided in two parts, 40 and 656045, that added together give a triangular number (656085 = T₁₁₄₅).

The spelling of 40656045 in words is "forty million, six hundred fifty-six thousand, forty-five".