2572022642 has 54 divisors (see below), whose sum is σ = 4627890477. Its totient is φ = 1068944688.

The previous prime is 2572022623. The next prime is 2572022711. The reversal of 2572022642 is 2462202752.

It can be written as a sum of positive squares in 2 ways, for example, as 2468003041 + 104019601 = 49679^2 + 10199^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=35861.

It is a junction number, because it is equal to n+sod(n) for n = 2572022599 and 2572022608.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 23596484 + ... + 23596592.

Almost surely, 2^2572022642 is an apocalyptic number.

2572022642 is a deficient number, since it is larger than the sum of its proper divisors (2055867835).

2572022642 is an equidigital number, since it uses as much as digits as its factorization.

2572022642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 2572022642 is about 50715.1125602616. The cubic root of 2572022642 is about 1370.1189166317.

Multiplying 2572022642 by its sum of digits (32), we get a square (82304724544 = 286888²).

The spelling of 2572022642 in words is "two billion, five hundred seventy-two million, twenty-two thousand, six hundred forty-two".