40478404 has 6 divisors (see below), whose sum is σ = 70837214. Its totient is φ = 20239200.

The previous prime is 40478393. The next prime is 40478423. The reversal of 40478404 is 40487404.

It can be written as a sum of positive squares in only one way, i.e., 33177600 + 7300804 = 5760^2 + 2702^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5059797 + ... + 5059804.

Almost surely, 2^40478404 is an apocalyptic number.

It is an amenable number.

40478404 is a deficient number, since it is larger than the sum of its proper divisors (30358810).

40478404 is a wasteful number, since it uses less digits than its factorization.

40478404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10119605 (or 10119603 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 31.

The square root of 40478404 is about 6362.2640624231. The cubic root of 40478404 is about 343.3532217928.

The spelling of 40478404 in words is "forty million, four hundred seventy-eight thousand, four hundred four".