100999488 has 112 divisors (see below), whose sum is σ = 280903680. Its totient is φ = 31987200.

The previous prime is 100999487. The next prime is 100999511. The reversal of 100999488 is 884999001.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100999487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 422473 + ... + 422711.

Almost surely, 2^100999488 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 100999488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140451840).

100999488 is an abundant number, since it is smaller than the sum of its proper divisors (179904192).

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

100999488 is a wasteful number, since it uses less digits than its factorization.

100999488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 48.

The square root of 100999488 is about 10049.8501481365. The cubic root of 100999488 is about 465.7001638520.

The spelling of 100999488 in words is "one hundred million, nine hundred ninety-nine thousand, four hundred eighty-eight".