1003399992 has 96 divisors (see below), whose sum is σ = 3171916800. Its totient is φ = 280579392.

The previous prime is 1003399987. The next prime is 1003400009. The reversal of 1003399992 is 2999933001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2509 + ... + 44867.

It is an arithmetic number, because the mean of its divisors is an integer number (33040800).

Almost surely, 2^1003399992 is an apocalyptic number.

1003399992 is a gapful number since it is divisible by the number (12) 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 1003399992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1585958400).

1003399992 is an abundant number, since it is smaller than the sum of its proper divisors (2168516808).

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

1003399992 is a wasteful number, since it uses less digits than its factorization.

1003399992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42425 (or 42418 counting only the distinct ones).

The product of its (nonzero) digits is 118098, while the sum is 45.

The square root of 1003399992 is about 31676.4895782345. The cubic root of 1003399992 is about 1001.1320486489.

The spelling of 1003399992 in words is "one billion, three million, three hundred ninety-nine thousand, nine hundred ninety-two".