1398739376 has 20 divisors (see below), whose sum is σ = 2727323952. Its totient is φ = 694913856.

The previous prime is 1398739361. The next prime is 1398739409. The reversal of 1398739376 is 6739378931.

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, 275900 + ... + 280923.

Almost surely, 2^1398739376 is an apocalyptic number.

1398739376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1398739376 is a deficient number, since it is larger than the sum of its proper divisors (1328584576).

1398739376 is a wasteful number, since it uses less digits than its factorization.

1398739376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556988 (or 556982 counting only the distinct ones).

The product of its digits is 5143824, while the sum is 56.

The square root of 1398739376 is about 37399.7242770585. The cubic root of 1398739376 is about 1118.3530683614.

The spelling of 1398739376 in words is "one billion, three hundred ninety-eight million, seven hundred thirty-nine thousand, three hundred seventy-six".