100322992 has 60 divisors (see below), whose sum is σ = 246687336. Its totient is φ = 39083520.

The previous prime is 100322921. The next prime is 100322993. The reversal of 100322992 is 299223001.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 100322992.

It is not an unprimeable number, because it can be changed into a prime (100322993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2808 + ... + 14440.

Almost surely, 2^100322992 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 100322992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123343668).

100322992 is an abundant number, since it is smaller than the sum of its proper divisors (146364344).

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

100322992 is a wasteful number, since it uses less digits than its factorization.

100322992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11666 (or 11653 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 100322992 is about 10016.1365805384. The cubic root of 100322992 is about 464.6580783133.

Adding to 100322992 its reverse (299223001), we get a palindrome (399545993).

The spelling of 100322992 in words is "one hundred million, three hundred twenty-two thousand, nine hundred ninety-two".