234921888 has 72 divisors (see below), whose sum is σ = 671580000. Its totient is φ = 77894784.

The previous prime is 234921887. The next prime is 234921941. The reversal of 234921888 is 888129432.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×234921888² = 110376586922969088, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (234921887) 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 11 ways as a sum of consecutive naturals, for example, 55263 + ... + 59361.

It is an arithmetic number, because the mean of its divisors is an integer number (9327500).

Almost surely, 2^234921888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 234921888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335790000).

234921888 is an abundant number, since it is smaller than the sum of its proper divisors (436658112).

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

234921888 is a wasteful number, since it uses less digits than its factorization.

234921888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4314 (or 4303 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 234921888 is about 15327.1617724874. The cubic root of 234921888 is about 617.0321987072.

The spelling of 234921888 in words is "two hundred thirty-four million, nine hundred twenty-one thousand, eight hundred eighty-eight".