23021440272 has 200 divisors, whose sum is σ = 69278869440. Its totient is φ = 7371544320.

The previous prime is 23021440237. The next prime is 23021440331. The reversal of 23021440272 is 27204412032.

23021440272 is a `hidden beast` number, since 230 + 21 + 4 + 402 + 7 + 2 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7928773 + ... + 7931675.

Almost surely, 2^23021440272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23021440272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34639434720).

23021440272 is an abundant number, since it is smaller than the sum of its proper divisors (46257429168).

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

23021440272 is a wasteful number, since it uses less digits than its factorization.

23021440272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3163 (or 3148 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The spelling of 23021440272 in words is "twenty-three billion, twenty-one million, four hundred forty thousand, two hundred seventy-two".