1389537352 has 16 divisors (see below), whose sum is σ = 2977580160. Its totient is φ = 595515984.

The previous prime is 1389537343. The next prime is 1389537371. The reversal of 1389537352 is 2537359831.

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, 12406528 + ... + 12406639.

It is an arithmetic number, because the mean of its divisors is an integer number (186098760).

Almost surely, 2^1389537352 is an apocalyptic number.

It is an amenable number.

1389537352 is an abundant number, since it is smaller than the sum of its proper divisors (1588042808).

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

1389537352 is a wasteful number, since it uses less digits than its factorization.

1389537352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24813180 (or 24813176 counting only the distinct ones).

The product of its digits is 680400, while the sum is 46.

The square root of 1389537352 is about 37276.4986553190. The cubic root of 1389537352 is about 1115.8951974827.

The spelling of 1389537352 in words is "one billion, three hundred eighty-nine million, five hundred thirty-seven thousand, three hundred fifty-two".