1399538552 has 16 divisors (see below), whose sum is σ = 2679968160. Its totient is φ = 684880384.

The previous prime is 1399538551. The next prime is 1399538563. The reversal of 1399538552 is 2558359931.

It is a self number, because there is not a number n which added to its sum of digits gives 1399538552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399538551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1860713 + ... + 1861464.

It is an arithmetic number, because the mean of its divisors is an integer number (167498010).

Almost surely, 2^1399538552 is an apocalyptic number.

It is an amenable number.

1399538552 is a deficient number, since it is larger than the sum of its proper divisors (1280429608).

1399538552 is a wasteful number, since it uses less digits than its factorization.

1399538552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3722230 (or 3722226 counting only the distinct ones).

The product of its digits is 1458000, while the sum is 50.

The square root of 1399538552 is about 37410.4070012610. The cubic root of 1399538552 is about 1118.5660198192.

The spelling of 1399538552 in words is "one billion, three hundred ninety-nine million, five hundred thirty-eight thousand, five hundred fifty-two".