23479420 has 24 divisors (see below), whose sum is σ = 49644000. Its totient is φ = 9327552.

The previous prime is 23479409. The next prime is 23479427. The reversal of 23479420 is 2497432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23479427) 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, 960 + ... + 6919.

It is an arithmetic number, because the mean of its divisors is an integer number (2068500).

Almost surely, 2^23479420 is an apocalyptic number.

23479420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23479420 is an abundant number, since it is smaller than the sum of its proper divisors (26164580).

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

23479420 is a wasteful number, since it uses less digits than its factorization.

23479420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8037 (or 8035 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 23479420 is about 4845.5567275598. The cubic root of 23479420 is about 286.3490774033.

The spelling of 23479420 in words is "twenty-three million, four hundred seventy-nine thousand, four hundred twenty".