40478460 has 48 divisors (see below), whose sum is σ = 123645312. Its totient is φ = 9812800.

The previous prime is 40478447. The next prime is 40478489. The reversal of 40478460 is 6487404.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30006 + ... + 31325.

It is an arithmetic number, because the mean of its divisors is an integer number (2575944).

Almost surely, 2^40478460 is an apocalyptic number.

It is an amenable number.

40478460 is an abundant number, since it is smaller than the sum of its proper divisors (83166852).

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

40478460 is a wasteful number, since it uses less digits than its factorization.

40478460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61354 (or 61352 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 40478460 is about 6362.2684633706. The cubic root of 40478460 is about 343.3533801305.

The spelling of 40478460 in words is "forty million, four hundred seventy-eight thousand, four hundred sixty".