1564138352 has 20 divisors (see below), whose sum is σ = 3463449456. Its totient is φ = 670344960.

The previous prime is 1564138267. The next prime is 1564138379. The reversal of 1564138352 is 2538314651.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6982649 + ... + 6982872.

Almost surely, 2^1564138352 is an apocalyptic number.

It is an amenable number.

1564138352 is an abundant number, since it is smaller than the sum of its proper divisors (1899311104).

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

1564138352 is a wasteful number, since it uses less digits than its factorization.

1564138352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13965536 (or 13965530 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The square root of 1564138352 is about 39549.1890182340. The cubic root of 1564138352 is about 1160.8026430693.

The spelling of 1564138352 in words is "one billion, five hundred sixty-four million, one hundred thirty-eight thousand, three hundred fifty-two".