1598440368 has 160 divisors (see below), whose sum is σ = 5099673600. Its totient is φ = 429757440.

The previous prime is 1598440273. The next prime is 1598440397. The reversal of 1598440368 is 8630448951.

It is a super-2 number, since 2×1598440368² = 5110023220103950848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 277033 + ... + 282743.

It is an arithmetic number, because the mean of its divisors is an integer number (31872960).

Almost surely, 2^1598440368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1598440368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2549836800).

1598440368 is an abundant number, since it is smaller than the sum of its proper divisors (3501233232).

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

1598440368 is a wasteful number, since it uses less digits than its factorization.

1598440368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5760 (or 5740 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 48.

The square root of 1598440368 is about 39980.4998468003. The cubic root of 1598440368 is about 1169.2269391007.

The spelling of 1598440368 in words is "one billion, five hundred ninety-eight million, four hundred forty thousand, three hundred sixty-eight".