40478412 has 48 divisors (see below), whose sum is σ = 102163040. Its totient is φ = 12400128.

The previous prime is 40478393. The next prime is 40478423. The reversal of 40478412 is 21487404.

40478412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 40478412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48414 + ... + 49242.

Almost surely, 2^40478412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40478412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51081520).

40478412 is an abundant number, since it is smaller than the sum of its proper divisors (61684628).

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

40478412 is a wasteful number, since it uses less digits than its factorization.

40478412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162 (or 1160 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 40478412 is about 6362.2646911300. The cubic root of 40478412 is about 343.3532444124.

The spelling of 40478412 in words is "forty million, four hundred seventy-eight thousand, four hundred twelve".