1598821044 has 24 divisors (see below), whose sum is σ = 3926929440. Its totient is φ = 504890784.

The previous prime is 1598821033. The next prime is 1598821051. The reversal of 1598821044 is 4401288951.

It is a junction number, because it is equal to n+sod(n) for n = 1598820987 and 1598821005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3505959 + ... + 3506414.

It is an arithmetic number, because the mean of its divisors is an integer number (163622060).

Almost surely, 2^1598821044 is an apocalyptic number.

It is an amenable number.

1598821044 is an abundant number, since it is smaller than the sum of its proper divisors (2328108396).

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

1598821044 is a wasteful number, since it uses less digits than its factorization.

1598821044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7012399 (or 7012397 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 1598821044 is about 39985.2603342782. The cubic root of 1598821044 is about 1169.3197506758.

The spelling of 1598821044 in words is "one billion, five hundred ninety-eight million, eight hundred twenty-one thousand, forty-four".