234820640 has 24 divisors (see below), whose sum is σ = 554764140. Its totient is φ = 93928192.

The previous prime is 234820631. The next prime is 234820673. The reversal of 234820640 is 46028432.

234820640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 230675344 + 4145296 = 15188^2 + 2036^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 733655 + ... + 733974.

Almost surely, 2^234820640 is an apocalyptic number.

234820640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234820640 is an abundant number, since it is smaller than the sum of its proper divisors (319943500).

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

234820640 is a wasteful number, since it uses less digits than its factorization.

234820640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467644 (or 1467636 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 234820640 is about 15323.8585219259. The cubic root of 234820640 is about 616.9435419289.

The spelling of 234820640 in words is "two hundred thirty-four million, eight hundred twenty thousand, six hundred forty".