23074021620 has 144 divisors (see below), whose sum is σ = 76437309312. Its totient is φ = 5599722240.

The previous prime is 23074021583. The next prime is 23074021637. The reversal of 23074021620 is 2612047032.

23074021620 is a `hidden beast` number, since 2 + 30 + 7 + 4 + 0 + 2 + 1 + 620 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 96699 + ... + 235581.

It is an arithmetic number, because the mean of its divisors is an integer number (530814648).

Almost surely, 2^23074021620 is an apocalyptic number.

23074021620 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 23074021620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38218654656).

23074021620 is an abundant number, since it is smaller than the sum of its proper divisors (53363287692).

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

23074021620 is a wasteful number, since it uses less digits than its factorization.

23074021620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138982 (or 138977 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

Adding to 23074021620 its reverse (2612047032), we get a palindrome (25686068652).

The spelling of 23074021620 in words is "twenty-three billion, seventy-four million, twenty-one thousand, six hundred twenty".