100863240 has 64 divisors (see below), whose sum is σ = 308318400. Its totient is φ = 26387712.

The previous prime is 100863233. The next prime is 100863263. The reversal of 100863240 is 42368001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 100863240.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1570 + ... + 14289.

It is an arithmetic number, because the mean of its divisors is an integer number (4817475).

Almost surely, 2^100863240 is an apocalyptic number.

100863240 is a gapful number since it is divisible by the number (10) 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 100863240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154159200).

100863240 is an abundant number, since it is smaller than the sum of its proper divisors (207455160).

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

100863240 is a wasteful number, since it uses less digits than its factorization.

100863240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15926 (or 15922 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 100863240 is about 10043.0692519767. The cubic root of 100863240 is about 465.4906602523.

The spelling of 100863240 in words is "one hundred million, eight hundred sixty-three thousand, two hundred forty".