1001398932 has 72 divisors (see below), whose sum is σ = 2712842496. Its totient is φ = 310647744.

The previous prime is 1001398877. The next prime is 1001398939. The reversal of 1001398932 is 2398931001.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001398939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14293 + ... + 46979.

It is an arithmetic number, because the mean of its divisors is an integer number (37678368).

Almost surely, 2^1001398932 is an apocalyptic number.

1001398932 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 1001398932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1356421248).

1001398932 is an abundant number, since it is smaller than the sum of its proper divisors (1711443564).

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

1001398932 is a wasteful number, since it uses less digits than its factorization.

1001398932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32757 (or 32752 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 1001398932 is about 31644.8879283843. The cubic root of 1001398932 is about 1000.4660933899.

The spelling of 1001398932 in words is "one billion, one million, three hundred ninety-eight thousand, nine hundred thirty-two".