100250640 has 120 divisors (see below), whose sum is σ = 384790848. Its totient is φ = 22913280.

The previous prime is 100250639. The next prime is 100250641. The reversal of 100250640 is 46052001.

It is a happy number.

100250640 is a `hidden beast` number, since 1 + 0 + 0 + 25 + 0 + 640 = 666.

It is an interprime number because it is at equal distance from previous prime (100250639) and next prime (100250641).

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (100250641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4906 + ... + 14985.

Almost surely, 2^100250640 is an apocalyptic number.

100250640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100250640 is an abundant number, since it is smaller than the sum of its proper divisors (284540208).

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

100250640 is a wasteful number, since it uses less digits than its factorization.

100250640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19917 (or 19908 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 100250640 is about 10012.5241572742. The cubic root of 100250640 is about 464.5463491017.

The spelling of 100250640 in words is "one hundred million, two hundred fifty thousand, six hundred forty".