40475428 has 24 divisors (see below), whose sum is σ = 81087552. Its totient is φ = 17317344.

The previous prime is 40475389. The next prime is 40475441. The reversal of 40475428 is 82457404.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40475393 and 40475402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27651 + ... + 29077.

It is an arithmetic number, because the mean of its divisors is an integer number (3378648).

Almost surely, 2^40475428 is an apocalyptic number.

It is an amenable number.

40475428 is an abundant number, since it is smaller than the sum of its proper divisors (40612124).

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

40475428 is a wasteful number, since it uses less digits than its factorization.

40475428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2451 (or 2449 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 40475428 is about 6362.0301791174. The cubic root of 40475428 is about 343.3448070652.

The spelling of 40475428 in words is "forty million, four hundred seventy-five thousand, four hundred twenty-eight".