100445748 has 24 divisors (see below), whose sum is σ = 252402528. Its totient is φ = 30906336.

The previous prime is 100445747. The next prime is 100445767. The reversal of 100445748 is 847544001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100445747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321786 + ... + 322097.

It is an arithmetic number, because the mean of its divisors is an integer number (10516772).

Almost surely, 2^100445748 is an apocalyptic number.

It is an amenable number.

100445748 is an abundant number, since it is smaller than the sum of its proper divisors (151956780).

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

100445748 is a wasteful number, since it uses less digits than its factorization.

100445748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643903 (or 643901 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 100445748 is about 10022.2626187902. The cubic root of 100445748 is about 464.8475208231.

Adding to 100445748 its reverse (847544001), we get a palindrome (947989749).

The spelling of 100445748 in words is "one hundred million, four hundred forty-five thousand, seven hundred forty-eight".