234158640 has 40 divisors (see below), whose sum is σ = 725892528. Its totient is φ = 62442240.

The previous prime is 234158633. The next prime is 234158647. The reversal of 234158640 is 46851432.

It is an interprime number because it is at equal distance from previous prime (234158633) and next prime (234158647).

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (234158647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487591 + ... + 488070.

Almost surely, 2^234158640 is an apocalyptic number.

234158640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234158640 is an abundant number, since it is smaller than the sum of its proper divisors (491733888).

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

234158640 is a wasteful number, since it uses less digits than its factorization.

234158640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975677 (or 975671 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 234158640 is about 15302.2429728455. The cubic root of 234158640 is about 616.3632394108.

The spelling of 234158640 in words is "two hundred thirty-four million, one hundred fifty-eight thousand, six hundred forty".