40556785 has 8 divisors (see below), whose sum is σ = 48960576. Its totient is φ = 32250480.

The previous prime is 40556779. The next prime is 40556801. The reversal of 40556785 is 58765504.

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

It is not a de Polignac number, because 40556785 - 2²¹ = 38459633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23451 + ... + 25120.

It is an arithmetic number, because the mean of its divisors is an integer number (6120072).

Almost surely, 2^40556785 is an apocalyptic number.

It is an amenable number.

40556785 is a deficient number, since it is larger than the sum of its proper divisors (8403791).

40556785 is a wasteful number, since it uses less digits than its factorization.

40556785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48743.

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 40556785 is about 6368.4209188778. The cubic root of 40556785 is about 343.5746980546.

The spelling of 40556785 in words is "forty million, five hundred fifty-six thousand, seven hundred eighty-five".