65428292 has 24 divisors (see below), whose sum is σ = 121345560. Its totient is φ = 30813440.

The previous prime is 65428289. The next prime is 65428309. The reversal of 65428292 is 29282456.

It can be written as a sum of positive squares in 4 ways, for example, as 1811716 + 63616576 = 1346^2 + 7976^2 .

It is a super-2 number, since 2×65428292² = 8561722788074528, which contains 22 as substring.

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, 2123 + ... + 11634.

It is an arithmetic number, because the mean of its divisors is an integer number (5056065).

Almost surely, 2^65428292 is an apocalyptic number.

It is an amenable number.

65428292 is a deficient number, since it is larger than the sum of its proper divisors (55917268).

65428292 is a wasteful number, since it uses less digits than its factorization.

65428292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13831 (or 13829 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 65428292 is about 8088.7756799160. The cubic root of 65428292 is about 402.9537431489.

The spelling of 65428292 in words is "sixty-five million, four hundred twenty-eight thousand, two hundred ninety-two".