1590004340 has 12 divisors (see below), whose sum is σ = 3339009156. Its totient is φ = 636001728.

The previous prime is 1590004333. The next prime is 1590004363. The reversal of 1590004340 is 434000951.

It can be written as a sum of positive squares in 2 ways, for example, as 852990436 + 737013904 = 29206^2 + 27148^2 .

It is a super-2 number, since 2×1590004340² = 5056227602437671200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39750089 + ... + 39750128.

It is an arithmetic number, because the mean of its divisors is an integer number (278250763).

Almost surely, 2^1590004340 is an apocalyptic number.

1590004340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1590004340 is an abundant number, since it is smaller than the sum of its proper divisors (1749004816).

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

1590004340 is a wasteful number, since it uses less digits than its factorization.

1590004340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79500226 (or 79500224 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1590004340 is about 39874.8584950467. The cubic root of 1590004340 is about 1167.1663816649.

The spelling of 1590004340 in words is "one billion, five hundred ninety million, four thousand, three hundred forty".