100418990 has 32 divisors (see below), whose sum is σ = 217451520. Its totient is φ = 32616864.

The previous prime is 100418953. The next prime is 100419029. The reversal of 100418990 is 99814001.

It is a Curzon number.

It is a congruent number.

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, 36422 + ... + 39081.

It is an arithmetic number, because the mean of its divisors is an integer number (6795360).

Almost surely, 2^100418990 is an apocalyptic number.

100418990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100418990 is an abundant number, since it is smaller than the sum of its proper divisors (117032530).

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

100418990 is a wasteful number, since it uses less digits than its factorization.

100418990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75536.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 100418990 is about 10020.9276017742. The cubic root of 100418990 is about 464.8062398501.

The spelling of 100418990 in words is "one hundred million, four hundred eighteen thousand, nine hundred ninety".