23591420 has 12 divisors (see below), whose sum is σ = 49542024. Its totient is φ = 9436560.

The previous prime is 23591417. The next prime is 23591423. The reversal of 23591420 is 2419532.

It is an interprime number because it is at equal distance from previous prime (23591417) and next prime (23591423).

It is a self number, because there is not a number n which added to its sum of digits gives 23591420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23591423) 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, 589766 + ... + 589805.

It is an arithmetic number, because the mean of its divisors is an integer number (4128502).

Almost surely, 2^23591420 is an apocalyptic number.

23591420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23591420 is an abundant number, since it is smaller than the sum of its proper divisors (25950604).

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

23591420 is a wasteful number, since it uses less digits than its factorization.

23591420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179580 (or 1179578 counting only the distinct ones).

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

The square root of 23591420 is about 4857.0999577937. The cubic root of 23591420 is about 286.8036632618.

The spelling of 23591420 in words is "twenty-three million, five hundred ninety-one thousand, four hundred twenty".