1398098400 has 72 divisors (see below), whose sum is σ = 4550818104. Its totient is φ = 372825600.

The previous prime is 1398098393. The next prime is 1398098437. The reversal of 1398098400 is 48908931.

It is a congruent number.

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, 288871 + ... + 293670.

It is an arithmetic number, because the mean of its divisors is an integer number (63205807).

Almost surely, 2^1398098400 is an apocalyptic number.

1398098400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1398098400 is an abundant number, since it is smaller than the sum of its proper divisors (3152719704).

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

1398098400 is a wasteful number, since it uses less digits than its factorization.

1398098400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582564 (or 582551 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 1398098400 is about 37391.1540340760. The cubic root of 1398098400 is about 1118.1822128482.

The spelling of 1398098400 in words is "one billion, three hundred ninety-eight million, ninety-eight thousand, four hundred".