64889230 has 48 divisors (see below), whose sum is σ = 136925856. Its totient is φ = 22075200.

The previous prime is 64889213. The next prime is 64889249. The reversal of 64889230 is 3298846.

It is a super-2 number, since 2×64889230² = 8421224339985800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73552 + ... + 74428.

It is an arithmetic number, because the mean of its divisors is an integer number (2852622).

Almost surely, 2^64889230 is an apocalyptic number.

64889230 is an abundant number, since it is smaller than the sum of its proper divisors (72036626).

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

64889230 is a wasteful number, since it uses less digits than its factorization.

64889230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049 (or 1042 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 64889230 is about 8055.3851552859. The cubic root of 64889230 is about 401.8440481521.

The spelling of 64889230 in words is "sixty-four million, eight hundred eighty-nine thousand, two hundred thirty".