53838740 has 24 divisors (see below), whose sum is σ = 115820712. Its totient is φ = 21009920.

The previous prime is 53838691. The next prime is 53838751. The reversal of 53838740 is 4783835.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7761796 + 46076944 = 2786^2 + 6788^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53838694 and 53838703.

It is a congruent number.

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, 32009 + ... + 33648.

It is an arithmetic number, because the mean of its divisors is an integer number (4825863).

Almost surely, 2^53838740 is an apocalyptic number.

It is an amenable number.

53838740 is an abundant number, since it is smaller than the sum of its proper divisors (61981972).

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

53838740 is a wasteful number, since it uses less digits than its factorization.

53838740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65707 (or 65705 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 53838740 is about 7337.4886712008. The cubic root of 53838740 is about 377.5996900583.

The spelling of 53838740 in words is "fifty-three million, eight hundred thirty-eight thousand, seven hundred forty".