56739438 has 48 divisors (see below), whose sum is σ = 148767840. Its totient is φ = 15257088.

The previous prime is 56739427. The next prime is 56739439. The reversal of 56739438 is 83493765.

It is a junction number, because it is equal to n+sod(n) for n = 56739393 and 56739402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56739439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11103 + ... + 15386.

It is an arithmetic number, because the mean of its divisors is an integer number (3099330).

Almost surely, 2^56739438 is an apocalyptic number.

56739438 is an abundant number, since it is smaller than the sum of its proper divisors (92028402).

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

56739438 is a wasteful number, since it uses less digits than its factorization.

56739438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26521 (or 26518 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 56739438 is about 7532.5585294772. The cubic root of 56739438 is about 384.2628002481.

The spelling of 56739438 in words is "fifty-six million, seven hundred thirty-nine thousand, four hundred thirty-eight".