1398371590 has 96 divisors (see below), whose sum is σ = 3271544640. Its totient is φ = 420752640.

The previous prime is 1398371581. The next prime is 1398371603. The reversal of 1398371590 is 951738931.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1398371590.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 242784 + ... + 248476.

It is an arithmetic number, because the mean of its divisors is an integer number (34078590).

Almost surely, 2^1398371590 is an apocalyptic number.

1398371590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1398371590 is an abundant number, since it is smaller than the sum of its proper divisors (1873173050).

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

1398371590 is a wasteful number, since it uses less digits than its factorization.

1398371590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5758 (or 5747 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 46.

The square root of 1398371590 is about 37394.8069924154. The cubic root of 1398371590 is about 1118.2550394589.

The spelling of 1398371590 in words is "one billion, three hundred ninety-eight million, three hundred seventy-one thousand, five hundred ninety".