53728940 has 24 divisors (see below), whose sum is σ = 114745680. Its totient is φ = 21126848.

The previous prime is 53728937. The next prime is 53728981. The reversal of 53728940 is 4982735.

It is a junction number, because it is equal to n+sod(n) for n = 53728894 and 53728903.

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, 21587 + ... + 23946.

It is an arithmetic number, because the mean of its divisors is an integer number (4781070).

Almost surely, 2^53728940 is an apocalyptic number.

It is an amenable number.

53728940 is an abundant number, since it is smaller than the sum of its proper divisors (61016740).

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

53728940 is a wasteful number, since it uses less digits than its factorization.

53728940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45601 (or 45599 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 53728940 is about 7330.0027285125. The cubic root of 53728940 is about 377.3428201100.

The spelling of 53728940 in words is "fifty-three million, seven hundred twenty-eight thousand, nine hundred forty".