234638720 has 64 divisors (see below), whose sum is σ = 562807440. Its totient is φ = 93542400.

The previous prime is 234638713. The next prime is 234638753. The reversal of 234638720 is 27836432.

234638720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334370 + ... + 335070.

Almost surely, 2^234638720 is an apocalyptic number.

234638720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 234638720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281403720).

234638720 is an abundant number, since it is smaller than the sum of its proper divisors (328168720).

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

234638720 is an equidigital number, since it uses as much as digits as its factorization.

234638720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243 (or 1231 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 234638720 is about 15317.9215300249. The cubic root of 234638720 is about 616.7841814840.

The spelling of 234638720 in words is "two hundred thirty-four million, six hundred thirty-eight thousand, seven hundred twenty".