56740420 has 48 divisors (see below), whose sum is σ = 130536000. Its totient is φ = 20545920.

The previous prime is 56740417. The next prime is 56740427. The reversal of 56740420 is 2404765.

It is not an unprimeable number, because it can be changed into a prime (56740427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76411 + ... + 77149.

It is an arithmetic number, because the mean of its divisors is an integer number (2719500).

Almost surely, 2^56740420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56740420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65268000).

56740420 is an abundant number, since it is smaller than the sum of its proper divisors (73795580).

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

56740420 is a wasteful number, since it uses less digits than its factorization.

56740420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108 (or 1106 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 56740420 is about 7532.6237128905. The cubic root of 56740420 is about 384.2650170712.

The spelling of 56740420 in words is "fifty-six million, seven hundred forty thousand, four hundred twenty".