23390742984 has 128 divisors (see below), whose sum is σ = 70550784000. Its totient is φ = 6313089024.

The previous prime is 23390742971. The next prime is 23390743049. The reversal of 23390742984 is 48924709332.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1116397 + ... + 1137155.

It is an arithmetic number, because the mean of its divisors is an integer number (551178000).

Almost surely, 2^23390742984 is an apocalyptic number.

23390742984 is a gapful number since it is divisible by the number (24) 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 23390742984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35275392000).

23390742984 is an abundant number, since it is smaller than the sum of its proper divisors (47160041016).

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

23390742984 is a wasteful number, since it uses less digits than its factorization.

23390742984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21147 (or 21143 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 51.

The spelling of 23390742984 in words is "twenty-three billion, three hundred ninety million, seven hundred forty-two thousand, nine hundred eighty-four".