100990464 has 80 divisors (see below), whose sum is σ = 276471888. Its totient is φ = 32735232.

The previous prime is 100990457. The next prime is 100990481. The reversal of 100990464 is 464099001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55944 + ... + 57720.

Almost surely, 2^100990464 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 100990464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138235944).

100990464 is an abundant number, since it is smaller than the sum of its proper divisors (175481424).

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

100990464 is an equidigital number, since it uses as much as digits as its factorization.

100990464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835 (or 1819 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 100990464 is about 10049.4011761896. The cubic root of 100990464 is about 465.6862938034.

The spelling of 100990464 in words is "one hundred million, nine hundred ninety thousand, four hundred sixty-four".