23291409330 has 128 divisors (see below), whose sum is σ = 71075750400. Its totient is φ = 5316820992.

The previous prime is 23291409307. The next prime is 23291409343. The reversal of 23291409330 is 3390419232.

23291409330 is a `hidden beast` number, since 232 + 91 + 4 + 0 + 9 + 330 = 666.

It is a super-2 number, since 2×23291409330² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1521394 + ... + 1536626.

It is an arithmetic number, because the mean of its divisors is an integer number (555279300).

Almost surely, 2^23291409330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23291409330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35537875200).

23291409330 is an abundant number, since it is smaller than the sum of its proper divisors (47784341070).

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

23291409330 is a wasteful number, since it uses less digits than its factorization.

23291409330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16065 (or 16059 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The spelling of 23291409330 in words is "twenty-three billion, two hundred ninety-one million, four hundred nine thousand, three hundred thirty".