40120456 has 16 divisors (see below), whose sum is σ = 77820300. Its totient is φ = 19368384.

The previous prime is 40120397. The next prime is 40120463. The reversal of 40120456 is 65402104.

It can be written as a sum of positive squares in 2 ways, for example, as 40119556 + 900 = 6334^2 + 30^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86235 + ... + 86698.

Almost surely, 2^40120456 is an apocalyptic number.

It is an amenable number.

40120456 is a deficient number, since it is larger than the sum of its proper divisors (37699844).

40120456 is a wasteful number, since it uses less digits than its factorization.

40120456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172968 (or 172964 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 40120456 is about 6334.0710447547. The cubic root of 40120456 is about 342.3381400825.

The spelling of 40120456 in words is "forty million, one hundred twenty thousand, four hundred fifty-six".