234921872 has 20 divisors (see below), whose sum is σ = 460647600. Its totient is φ = 116045088.

The previous prime is 234921851. The next prime is 234921877. The reversal of 234921872 is 278129432.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (234921877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87122 + ... + 89777.

It is an arithmetic number, because the mean of its divisors is an integer number (23032380).

Almost surely, 2^234921872 is an apocalyptic number.

It is an amenable number.

234921872 is a deficient number, since it is larger than the sum of its proper divisors (225725728).

234921872 is a wasteful number, since it uses less digits than its factorization.

234921872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176990 (or 176984 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 234921872 is about 15327.1612505382. The cubic root of 234921872 is about 617.0321846990.

The spelling of 234921872 in words is "two hundred thirty-four million, nine hundred twenty-one thousand, eight hundred seventy-two".