990174794200 has 48 divisors (see below), whose sum is σ = 2303615115000. Its totient is φ = 395818955520.

The previous prime is 990174794179. The next prime is 990174794303. The reversal of 990174794200 is 2497471099.

It is a super-2 number, since 2×990174794200² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1251925 + ... + 1883524.

Almost surely, 2^990174794200 is an apocalyptic number.

It is an amenable number.

990174794200 is an abundant number, since it is smaller than the sum of its proper divisors (1313440320800).

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

990174794200 is a wasteful number, since it uses less digits than its factorization.

990174794200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3137044 (or 3137035 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 52.

The spelling of 990174794200 in words is "nine hundred ninety billion, one hundred seventy-four million, seven hundred ninety-four thousand, two hundred".