56405460 has 48 divisors (see below), whose sum is σ = 158288256. Its totient is φ = 15007872.

The previous prime is 56405449. The next prime is 56405467. The reversal of 56405460 is 6450465.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56405467) 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, 38094 + ... + 39546.

It is an arithmetic number, because the mean of its divisors is an integer number (3297672).

Almost surely, 2^56405460 is an apocalyptic number.

It is an amenable number.

56405460 is an abundant number, since it is smaller than the sum of its proper divisors (101882796).

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

56405460 is a wasteful number, since it uses less digits than its factorization.

56405460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112 (or 2110 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 56405460 is about 7510.3568490452. The cubic root of 56405460 is about 383.5073706687.

It can be divided in two parts, 56405 and 460, that added together give a palindrome (56865).

The spelling of 56405460 in words is "fifty-six million, four hundred five thousand, four hundred sixty".