234640780 has 36 divisors (see below), whose sum is σ = 541618560. Its totient is φ = 85323040.

The previous prime is 234640759. The next prime is 234640787. The reversal of 234640780 is 87046432.

It is not an unprimeable number, because it can be changed into a prime (234640787) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46060 + ... + 50899.

It is an arithmetic number, because the mean of its divisors is an integer number (15044960).

Almost surely, 2^234640780 is an apocalyptic number.

234640780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234640780 is an abundant number, since it is smaller than the sum of its proper divisors (306977780).

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

234640780 is a wasteful number, since it uses less digits than its factorization.

234640780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96990 (or 96977 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 234640780 is about 15317.9887713760. The cubic root of 234640780 is about 616.7859864883.

The spelling of 234640780 in words is "two hundred thirty-four million, six hundred forty thousand, seven hundred eighty".