1398876850 has 24 divisors (see below), whose sum is σ = 2973613248. Its totient is φ = 479614800.

The previous prime is 1398876823. The next prime is 1398876877. The reversal of 1398876850 is 586788931.

It is an interprime number because it is at equal distance from previous prime (1398876823) and next prime (1398876877).

It is a junction number, because it is equal to n+sod(n) for n = 1398876791 and 1398876800.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1998046 + ... + 1998745.

It is an arithmetic number, because the mean of its divisors is an integer number (123900552).

Almost surely, 2^1398876850 is an apocalyptic number.

1398876850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1398876850 is an abundant number, since it is smaller than the sum of its proper divisors (1574736398).

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

1398876850 is a wasteful number, since it uses less digits than its factorization.

1398876850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3996810 (or 3996805 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 55.

The square root of 1398876850 is about 37401.5621331516. The cubic root of 1398876850 is about 1118.3897059785.

The spelling of 1398876850 in words is "one billion, three hundred ninety-eight million, eight hundred seventy-six thousand, eight hundred fifty".