64323234 has 20 divisors (see below), whose sum is σ = 144132054. Its totient is φ = 21441024.

The previous prime is 64323229. The next prime is 64323239. The reversal of 64323234 is 43232346.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (64323229) and next prime (64323239).

It can be written as a sum of positive squares in only one way, i.e., 57836025 + 6487209 = 7605^2 + 2547^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 64323198 and 64323207.

It is not an unprimeable number, because it can be changed into a prime (64323239) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 198367 + ... + 198690.

Almost surely, 2^64323234 is an apocalyptic number.

64323234 is an abundant number, since it is smaller than the sum of its proper divisors (79808820).

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

64323234 is a wasteful number, since it uses less digits than its factorization.

64323234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397071 (or 397062 counting only the distinct ones).

The product of its digits is 10368, while the sum is 27.

The square root of 64323234 is about 8020.1766813456. The cubic root of 64323234 is about 400.6722736540.

The spelling of 64323234 in words is "sixty-four million, three hundred twenty-three thousand, two hundred thirty-four".