22715557242 has 32 divisors (see below), whose sum is σ = 52106073984. Its totient is φ = 6467059200.

The previous prime is 22715557237. The next prime is 22715557283. The reversal of 22715557242 is 24275551722.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 22715557194 and 22715557203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 950559 + ... + 974162.

It is an arithmetic number, because the mean of its divisors is an integer number (1628314812).

Almost surely, 2^22715557242 is an apocalyptic number.

22715557242 is an abundant number, since it is smaller than the sum of its proper divisors (29390516742).

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

22715557242 is a wasteful number, since it uses less digits than its factorization.

22715557242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925014.

The product of its digits is 392000, while the sum is 42.

The spelling of 22715557242 in words is "twenty-two billion, seven hundred fifteen million, five hundred fifty-seven thousand, two hundred forty-two".