1799197800 has 48 divisors (see below), whose sum is σ = 5577515040. Its totient is φ = 479785920.

The previous prime is 1799197783. The next prime is 1799197817. The reversal of 1799197800 is 87919971.

It is an interprime number because it is at equal distance from previous prime (1799197783) and next prime (1799197817).

It is a super-2 number, since 2×1799197800² = 6474225447049680000, which contains 22 as substring.

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, 1498732 + ... + 1499931.

It is an arithmetic number, because the mean of its divisors is an integer number (116198230).

Almost surely, 2^1799197800 is an apocalyptic number.

1799197800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1799197800 is an abundant number, since it is smaller than the sum of its proper divisors (3778317240).

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

1799197800 is a wasteful number, since it uses less digits than its factorization.

1799197800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998682 (or 2998673 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 51.

The square root of 1799197800 is about 42416.9517999585. The cubic root of 1799197800 is about 1216.2596632834.

The spelling of 1799197800 in words is "one billion, seven hundred ninety-nine million, one hundred ninety-seven thousand, eight hundred".