40655874 has 32 divisors (see below), whose sum is σ = 98395776. Its totient is φ = 10932480.

The previous prime is 40655873. The next prime is 40655921. The reversal of 40655874 is 47855604.

It is not an unprimeable number, because it can be changed into a prime (40655873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27757 + ... + 29184.

It is an arithmetic number, because the mean of its divisors is an integer number (3074868).

Almost surely, 2^40655874 is an apocalyptic number.

40655874 is an abundant number, since it is smaller than the sum of its proper divisors (57739902).

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

40655874 is a wasteful number, since it uses less digits than its factorization.

40655874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56970.

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 40655874 is about 6376.1958878316. The cubic root of 40655874 is about 343.8542795913.

It can be divided in two parts, 406 and 55874, that added together give a triangular number (56280 = T₃₃₅).

The spelling of 40655874 in words is "forty million, six hundred fifty-five thousand, eight hundred seventy-four".