51464238 has 32 divisors (see below), whose sum is σ = 118003200. Its totient is φ = 14657760.

The previous prime is 51464227. The next prime is 51464263. The reversal of 51464238 is 83246415.

It is a junction number, because it is equal to n+sod(n) for n = 51464199 and 51464208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12903 + ... + 16413.

It is an arithmetic number, because the mean of its divisors is an integer number (3687600).

Almost surely, 2^51464238 is an apocalyptic number.

51464238 is an abundant number, since it is smaller than the sum of its proper divisors (66538962).

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

51464238 is a wasteful number, since it uses less digits than its factorization.

51464238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3872.

The product of its digits is 23040, while the sum is 33.

The square root of 51464238 is about 7173.8579578913. The cubic root of 51464238 is about 371.9648047405.

The spelling of 51464238 in words is "fifty-one million, four hundred sixty-four thousand, two hundred thirty-eight".