234311640 has 64 divisors (see below), whose sum is σ = 725621760. Its totient is φ = 60466560.

The previous prime is 234311633. The next prime is 234311647. The reversal of 234311640 is 46113432.

It is an interprime number because it is at equal distance from previous prime (234311633) and next prime (234311647).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 234311640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234311647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27774 + ... + 35213.

It is an arithmetic number, because the mean of its divisors is an integer number (11337840).

Almost surely, 2^234311640 is an apocalyptic number.

234311640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234311640 is an abundant number, since it is smaller than the sum of its proper divisors (491310120).

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

234311640 is a wasteful number, since it uses less digits than its factorization.

234311640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63032 (or 63028 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 234311640 is about 15307.2414235877. The cubic root of 234311640 is about 616.4974547497.

The spelling of 234311640 in words is "two hundred thirty-four million, three hundred eleven thousand, six hundred forty".