40878922 has 32 divisors (see below), whose sum is σ = 73249920. Its totient is φ = 16739520.

The previous prime is 40878919. The next prime is 40878923. The reversal of 40878922 is 22987804.

It is not an unprimeable number, because it can be changed into a prime (40878923) 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, 42972 + ... + 43912.

It is an arithmetic number, because the mean of its divisors is an integer number (2289060).

Almost surely, 2^40878922 is an apocalyptic number.

40878922 is a deficient number, since it is larger than the sum of its proper divisors (32370998).

40878922 is a wasteful number, since it uses less digits than its factorization.

40878922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 40878922 is about 6393.6626435870. The cubic root of 40878922 is about 344.4819558253.

The spelling of 40878922 in words is "forty million, eight hundred seventy-eight thousand, nine hundred twenty-two".