23399429420 has 24 divisors (see below), whose sum is σ = 49141837248. Its totient is φ = 9359193600.

The previous prime is 23399429413. The next prime is 23399429429. The reversal of 23399429420 is 2492499332.

It is not an unprimeable number, because it can be changed into a prime (23399429429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465725 + ... + 513515.

It is an arithmetic number, because the mean of its divisors is an integer number (2047576552).

Almost surely, 2^23399429420 is an apocalyptic number.

23399429420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23399429420 is an abundant number, since it is smaller than the sum of its proper divisors (25742407828).

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

23399429420 is a wasteful number, since it uses less digits than its factorization.

23399429420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72281 (or 72279 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 47.

The spelling of 23399429420 in words is "twenty-three billion, three hundred ninety-nine million, four hundred twenty-nine thousand, four hundred twenty".