1999800152 has 24 divisors (see below), whose sum is σ = 4361809860. Its totient is φ = 857057040.

The previous prime is 1999800139. The next prime is 1999800169. The reversal of 1999800152 is 2510089991.

It is a happy number.

It is a super-3 number, since 3×1999800152³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2550374 + ... + 2551157.

Almost surely, 2^1999800152 is an apocalyptic number.

It is an amenable number.

1999800152 is an abundant number, since it is smaller than the sum of its proper divisors (2362009708).

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

1999800152 is a wasteful number, since it uses less digits than its factorization.

1999800152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5101551 (or 5101540 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 44.

The square root of 1999800152 is about 44719.1251256104. The cubic root of 1999800152 is about 1259.8790830467.

The spelling of 1999800152 in words is "one billion, nine hundred ninety-nine million, eight hundred thousand, one hundred fifty-two".