56340240 has 80 divisors (see below), whose sum is σ = 190541376. Its totient is φ = 13657600.

The previous prime is 56340239. The next prime is 56340241. The reversal of 56340240 is 4204365.

It is an interprime number because it is at equal distance from previous prime (56340239) and next prime (56340241).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 56340240.

It is not an unprimeable number, because it can be changed into a prime (56340241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8031 + ... + 13310.

Almost surely, 2^56340240 is an apocalyptic number.

It is an amenable number.

56340240 is an abundant number, since it is smaller than the sum of its proper divisors (134201136).

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

56340240 is a wasteful number, since it uses less digits than its factorization.

56340240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21368 (or 21362 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 56340240 is about 7506.0135891164. The cubic root of 56340240 is about 383.3595008392.

The spelling of 56340240 in words is "fifty-six million, three hundred forty thousand, two hundred forty".