981924132 has 144 divisors (see below), whose sum is σ = 2783219712. Its totient is φ = 268349760.

The previous prime is 981924109. The next prime is 981924133. The reversal of 981924132 is 231429189.

981924132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (981924133) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1877223 + ... + 1877745.

Almost surely, 2^981924132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 981924132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1391609856).

981924132 is an abundant number, since it is smaller than the sum of its proper divisors (1801295580).

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

981924132 is a wasteful number, since it uses less digits than its factorization.

981924132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678 (or 669 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 981924132 is about 31335.6686860198. The cubic root of 981924132 is about 993.9380375315.

The spelling of 981924132 in words is "nine hundred eighty-one million, nine hundred twenty-four thousand, one hundred thirty-two".