99768444 has 24 divisors (see below), whose sum is σ = 246487248. Its totient is φ = 31299840.

The previous prime is 99768433. The next prime is 99768481. The reversal of 99768444 is 44486799.

It is a super-2 number, since 2×99768444² = 19907484836362272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 244327 + ... + 244734.

It is an arithmetic number, because the mean of its divisors is an integer number (10270302).

Almost surely, 2^99768444 is an apocalyptic number.

It is an amenable number.

99768444 is an abundant number, since it is smaller than the sum of its proper divisors (146718804).

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

99768444 is a wasteful number, since it uses less digits than its factorization.

99768444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489085 (or 489083 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 51.

The square root of 99768444 is about 9988.4154899564. The cubic root of 99768444 is about 463.8003438975.

The spelling of 99768444 in words is "ninety-nine million, seven hundred sixty-eight thousand, four hundred forty-four".