1389698350 has 36 divisors (see below), whose sum is σ = 2643272784. Its totient is φ = 543344640.

The previous prime is 1389698327. The next prime is 1389698369. The reversal of 1389698350 is 538969831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1806766 + ... + 1807534.

It is an arithmetic number, because the mean of its divisors is an integer number (73424244).

Almost surely, 2^1389698350 is an apocalyptic number.

1389698350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1389698350 is a deficient number, since it is larger than the sum of its proper divisors (1253574434).

1389698350 is an frugal number, since it uses more digits than its factorization.

1389698350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597 (or 823 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 52.

The square root of 1389698350 is about 37278.6581035316. The cubic root of 1389698350 is about 1115.9382933512.

The spelling of 1389698350 in words is "one billion, three hundred eighty-nine million, six hundred ninety-eight thousand, three hundred fifty".