234974820 has 48 divisors (see below), whose sum is σ = 680621760. Its totient is φ = 60498816.

The previous prime is 234974797. The next prime is 234974821. The reversal of 234974820 is 28479432.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (234974821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65782 + ... + 69261.

It is an arithmetic number, because the mean of its divisors is an integer number (14179620).

Almost surely, 2^234974820 is an apocalyptic number.

234974820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234974820 is an abundant number, since it is smaller than the sum of its proper divisors (445646940).

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

234974820 is a wasteful number, since it uses less digits than its factorization.

234974820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135084 (or 135082 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 234974820 is about 15328.8884137109. Note that the first 3 decimals coincide. The cubic root of 234974820 is about 617.0785379336.

The spelling of 234974820 in words is "two hundred thirty-four million, nine hundred seventy-four thousand, eight hundred twenty".