100285240 has 64 divisors (see below), whose sum is σ = 248456160. Its totient is φ = 36126720.

The previous prime is 100285231. The next prime is 100285243. The reversal of 100285240 is 42582001.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100285243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48712 + ... + 50728.

Almost surely, 2^100285240 is an apocalyptic number.

100285240 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 100285240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124228080).

100285240 is an abundant number, since it is smaller than the sum of its proper divisors (148170920).

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

100285240 is a wasteful number, since it uses less digits than its factorization.

100285240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152 (or 2148 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 100285240 is about 10014.2518442468. The cubic root of 100285240 is about 464.5997866820.

The spelling of 100285240 in words is "one hundred million, two hundred eighty-five thousand, two hundred forty".