23748891420 has 24 divisors (see below), whose sum is σ = 66496896144. Its totient is φ = 6333037696.

The previous prime is 23748891349. The next prime is 23748891427. The reversal of 23748891420 is 2419884732.

It is a super-3 number, since 3×23748891420³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23748891420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23748891427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197907369 + ... + 197907488.

It is an arithmetic number, because the mean of its divisors is an integer number (2770704006).

Almost surely, 2^23748891420 is an apocalyptic number.

23748891420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23748891420 is an abundant number, since it is smaller than the sum of its proper divisors (42748004724).

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

23748891420 is a wasteful number, since it uses less digits than its factorization.

23748891420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395814869 (or 395814867 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 23748891420 in words is "twenty-three billion, seven hundred forty-eight million, eight hundred ninety-one thousand, four hundred twenty".