40855572 has 18 divisors (see below), whose sum is σ = 103273898. Its totient is φ = 13618512.

The previous prime is 40855559. The next prime is 40855603. The reversal of 40855572 is 27555804.

It is a happy number.

40855572 is a `hidden beast` number, since 4 + 0 + 85 + 5 + 572 = 666.

It can be written as a sum of positive squares in only one way, i.e., 39765636 + 1089936 = 6306^2 + 1044^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1134877 = 40855572 / (4 + 0 + 8 + 5 + 5 + 5 + 7 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 567403 + ... + 567474.

Almost surely, 2^40855572 is an apocalyptic number.

It is an amenable number.

40855572 is an abundant number, since it is smaller than the sum of its proper divisors (62418326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40855572 is a wasteful number, since it uses less digits than its factorization.

40855572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134887 (or 1134882 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The square root of 40855572 is about 6391.8363558527. The cubic root of 40855572 is about 344.4163540818.

The spelling of 40855572 in words is "forty million, eight hundred fifty-five thousand, five hundred seventy-two".