23420501190 has 40 divisors (see below), whose sum is σ = 62975127600. Its totient is φ = 6245466768.

The previous prime is 23420501189. The next prime is 23420501191. The reversal of 23420501190 is 9110502432.

23420501190 is a `hidden beast` number, since 2 + 3 + 420 + 50 + 1 + 190 = 666.

23420501190 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (23420501189) and next prime (23420501191).

It is a super-2 number, since 2×23420501190² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23420501191) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14456290 + ... + 14457909.

It is an arithmetic number, because the mean of its divisors is an integer number (1574378190).

Almost surely, 2^23420501190 is an apocalyptic number.

23420501190 is an abundant number, since it is smaller than the sum of its proper divisors (39554626410).

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

23420501190 is a wasteful number, since it uses less digits than its factorization.

23420501190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28914218 (or 28914209 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The spelling of 23420501190 in words is "twenty-three billion, four hundred twenty million, five hundred one thousand, one hundred ninety".