53428236 has 12 divisors (see below), whose sum is σ = 124665912. Its totient is φ = 17809408.

The previous prime is 53428223. The next prime is 53428261. The reversal of 53428236 is 63282435.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 53428197 and 53428206.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2226165 + ... + 2226188.

It is an arithmetic number, because the mean of its divisors is an integer number (10388826).

Almost surely, 2^53428236 is an apocalyptic number.

It is an amenable number.

53428236 is an abundant number, since it is smaller than the sum of its proper divisors (71237676).

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

53428236 is a wasteful number, since it uses less digits than its factorization.

53428236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4452360 (or 4452358 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 53428236 is about 7309.4620869117. The cubic root of 53428236 is about 376.6375463256.

The spelling of 53428236 in words is "fifty-three million, four hundred twenty-eight thousand, two hundred thirty-six".