64800234 has 12 divisors (see below), whose sum is σ = 140400546. Its totient is φ = 21600072.

The previous prime is 64800233. The next prime is 64800247. The reversal of 64800234 is 43200846.

It can be written as a sum of positive squares in only one way, i.e., 63250209 + 1550025 = 7953^2 + 1245^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64800198 and 64800207.

It is not an unprimeable number, because it can be changed into a prime (64800233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1799989 + ... + 1800024.

Almost surely, 2^64800234 is an apocalyptic number.

64800234 is an abundant number, since it is smaller than the sum of its proper divisors (75600312).

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

64800234 is a wasteful number, since it uses less digits than its factorization.

64800234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3600021 (or 3600018 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 64800234 is about 8049.8592534280. The cubic root of 64800234 is about 401.6602535281.

The spelling of 64800234 in words is "sixty-four million, eight hundred thousand, two hundred thirty-four".