234643992 has 64 divisors (see below), whose sum is σ = 642418560. Its totient is φ = 70828800.

The previous prime is 234643963. The next prime is 234643993. The reversal of 234643992 is 299346432.

234643992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234643993) 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, 72603 + ... + 75765.

It is an arithmetic number, because the mean of its divisors is an integer number (10037790).

Almost surely, 2^234643992 is an apocalyptic number.

234643992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 234643992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321209280).

234643992 is an abundant number, since it is smaller than the sum of its proper divisors (407774568).

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

234643992 is a wasteful number, since it uses less digits than its factorization.

234643992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3464 (or 3460 counting only the distinct ones).

The product of its digits is 279936, while the sum is 42.

The square root of 234643992 is about 15318.0936150684. The cubic root of 234643992 is about 616.7888008720.

The spelling of 234643992 in words is "two hundred thirty-four million, six hundred forty-three thousand, nine hundred ninety-two".