662513426 has 12 divisors (see below), whose sum is σ = 1055666778. Its totient is φ = 311770752.

The previous prime is 662513399. The next prime is 662513447. The reversal of 662513426 is 624315266.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 655411201 + 7102225 = 25601^2 + 2665^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 572531 + ... + 573686.

Almost surely, 2^662513426 is an apocalyptic number.

662513426 is a deficient number, since it is larger than the sum of its proper divisors (393153352).

662513426 is a wasteful number, since it uses less digits than its factorization.

662513426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146253 (or 1146236 counting only the distinct ones).

The product of its digits is 51840, while the sum is 35.

The square root of 662513426 is about 25739.3361608259. The cubic root of 662513426 is about 871.7625895012.

Adding to 662513426 its product of digits (51840), we get a palindrome (662565266).

The spelling of 662513426 in words is "six hundred sixty-two million, five hundred thirteen thousand, four hundred twenty-six".