100394450 has 54 divisors (see below), whose sum is σ = 204074829. Its totient is φ = 36728640.

The previous prime is 100394429. The next prime is 100394453. The reversal of 100394450 is 54493001.

It can be written as a sum of positive squares in 14 ways, for example, as 10543009 + 89851441 = 3247^2 + 9479^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=7085.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100394453) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 920996 + ... + 921104.

Almost surely, 2^100394450 is an apocalyptic number.

100394450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100394450 is an abundant number, since it is smaller than the sum of its proper divisors (103680379).

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

100394450 is a wasteful number, since it uses less digits than its factorization.

100394450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 100394450 is about 10019.7030894134. The cubic root of 100394450 is about 464.7683742552.

The spelling of 100394450 in words is "one hundred million, three hundred ninety-four thousand, four hundred fifty".