22856909490 has 48 divisors (see below), whose sum is σ = 59630859288. Its totient is φ = 6074366208.

The previous prime is 22856909489. The next prime is 22856909521. The reversal of 22856909490 is 9490965822.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21951681921 + 905227569 = 148161^2 + 30087^2 .

It is a super-2 number, since 2×22856909490² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 407019 + ... + 459758.

Almost surely, 2^22856909490 is an apocalyptic number.

22856909490 is an abundant number, since it is smaller than the sum of its proper divisors (36773949798).

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

22856909490 is a wasteful number, since it uses less digits than its factorization.

22856909490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867083 (or 867080 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 22856909490 in words is "twenty-two billion, eight hundred fifty-six million, nine hundred nine thousand, four hundred ninety".