23183420 has 72 divisors (see below), whose sum is σ = 55646640. Its totient is φ = 8109504.

The previous prime is 23183411. The next prime is 23183429. The reversal of 23183420 is 2438132.

It is an interprime number because it is at equal distance from previous prime (23183411) and next prime (23183429).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23183429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1220171 + ... + 1220189.

It is an arithmetic number, because the mean of its divisors is an integer number (772870).

Almost surely, 2^23183420 is an apocalyptic number.

23183420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23183420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27823320).

23183420 is an abundant number, since it is smaller than the sum of its proper divisors (32463220).

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

23183420 is a wasteful number, since it uses less digits than its factorization.

23183420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 39 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 23183420 is about 4814.9164063356. The cubic root of 23183420 is about 285.1406712963.

The spelling of 23183420 in words is "twenty-three million, one hundred eighty-three thousand, four hundred twenty".