40340456 has 32 divisors (see below), whose sum is σ = 86252040. Its totient is φ = 17522688.

The previous prime is 40340449. The next prime is 40340491. The reversal of 40340456 is 65404304.

It can be written as a sum of positive squares in 4 ways, for example, as 40119556 + 220900 = 6334^2 + 470^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 9641 + ... + 13176.

Almost surely, 2^40340456 is an apocalyptic number.

It is an amenable number.

40340456 is an abundant number, since it is smaller than the sum of its proper divisors (45911584).

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

40340456 is a wasteful number, since it uses less digits than its factorization.

40340456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22853 (or 22849 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 40340456 is about 6351.4137009016. The cubic root of 40340456 is about 342.9627353997.

The spelling of 40340456 in words is "forty million, three hundred forty thousand, four hundred fifty-six".