1398376828 has 6 divisors (see below), whose sum is σ = 2447159456. Its totient is φ = 699188412.

The previous prime is 1398376817. The next prime is 1398376829. The reversal of 1398376828 is 8286738931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398376829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174797100 + ... + 174797107.

Almost surely, 2^1398376828 is an apocalyptic number.

It is an amenable number.

1398376828 is a deficient number, since it is larger than the sum of its proper divisors (1048782628).

1398376828 is a wasteful number, since it uses less digits than its factorization.

1398376828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349594211 (or 349594209 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 55.

The square root of 1398376828 is about 37394.8770288124. The cubic root of 1398376828 is about 1118.2564357050.

The spelling of 1398376828 in words is "one billion, three hundred ninety-eight million, three hundred seventy-six thousand, eight hundred twenty-eight".