999413100 has 144 divisors (see below), whose sum is σ = 3671987200. Its totient is φ = 228432960.

The previous prime is 999413059. The next prime is 999413137. The reversal of 999413100 is 1314999.

It is a super-2 number, since 2×999413100² = 1997653088903220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 47 ways as a sum of consecutive naturals, for example, 7540 + ... + 45339.

Almost surely, 2^999413100 is an apocalyptic number.

999413100 is a gapful number since it is divisible by the number (90) 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 999413100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1835993600).

999413100 is an abundant number, since it is smaller than the sum of its proper divisors (2672574100).

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

999413100 is a wasteful number, since it uses less digits than its factorization.

999413100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52909 (or 52896 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 999413100 is about 31613.4955359258. The cubic root of 999413100 is about 999.8043283818.

It can be divided in two parts, 99941 and 3100, that added together give a square (103041 = 321²).

The spelling of 999413100 in words is "nine hundred ninety-nine million, four hundred thirteen thousand, one hundred".