23951420 has 12 divisors (see below), whose sum is σ = 50298024. Its totient is φ = 9580560.

The previous prime is 23951399. The next prime is 23951429. The reversal of 23951420 is 2415932.

It is a self number, because there is not a number n which added to its sum of digits gives 23951420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23951429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 598766 + ... + 598805.

It is an arithmetic number, because the mean of its divisors is an integer number (4191502).

Almost surely, 2^23951420 is an apocalyptic number.

23951420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23951420 is an abundant number, since it is smaller than the sum of its proper divisors (26346604).

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

23951420 is a wasteful number, since it uses less digits than its factorization.

23951420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197580 (or 1197578 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 23951420 is about 4894.0187984927. The cubic root of 23951420 is about 288.2551590298.

The spelling of 23951420 in words is "twenty-three million, nine hundred fifty-one thousand, four hundred twenty".