1799921136 has 160 divisors (see below), whose sum is σ = 5120172288. Its totient is φ = 541532160.

The previous prime is 1799921111. The next prime is 1799921141. The reversal of 1799921136 is 6311299971.

1799921136 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

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, 7929055 + ... + 7929281.

Almost surely, 2^1799921136 is an apocalyptic number.

1799921136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1799921136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2560086144).

1799921136 is an abundant number, since it is smaller than the sum of its proper divisors (3320251152).

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

1799921136 is a wasteful number, since it uses less digits than its factorization.

1799921136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479 (or 473 counting only the distinct ones).

The product of its digits is 183708, while the sum is 48.

The square root of 1799921136 is about 42425.4774398592. The cubic root of 1799921136 is about 1216.4226334190.

The spelling of 1799921136 in words is "one billion, seven hundred ninety-nine million, nine hundred twenty-one thousand, one hundred thirty-six".