64233258 has 32 divisors (see below), whose sum is σ = 133462080. Its totient is φ = 20592000.

The previous prime is 64233251. The next prime is 64233263. The reversal of 64233258 is 85233246.

It is a happy number.

It is a super-2 number, since 2×64233258² = 8251822866589128, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64233251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18133 + ... + 21383.

It is an arithmetic number, because the mean of its divisors is an integer number (4170690).

Almost surely, 2^64233258 is an apocalyptic number.

64233258 is an abundant number, since it is smaller than the sum of its proper divisors (69228822).

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

64233258 is a wasteful number, since it uses less digits than its factorization.

64233258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3382.

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

The square root of 64233258 is about 8014.5653656327. The cubic root of 64233258 is about 400.4853649805.

The spelling of 64233258 in words is "sixty-four million, two hundred thirty-three thousand, two hundred fifty-eight".