99040844 has 96 divisors (see below), whose sum is σ = 226437120. Its totient is φ = 36882432.

The previous prime is 99040841. The next prime is 99040849. The reversal of 99040844 is 44804099.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 99040798 and 99040807.

It is not an unprimeable number, because it can be changed into a prime (99040841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 424952 + ... + 425184.

It is an arithmetic number, because the mean of its divisors is an integer number (2358720).

Almost surely, 2^99040844 is an apocalyptic number.

99040844 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99040844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113218560).

99040844 is an abundant number, since it is smaller than the sum of its proper divisors (127396276).

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

99040844 is a wasteful number, since it uses less digits than its factorization.

99040844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 99040844 is about 9951.9266476396. The cubic root of 99040844 is about 462.6701106896.

The spelling of 99040844 in words is "ninety-nine million, forty thousand, eight hundred forty-four".