99403488 has 144 divisors (see below), whose sum is σ = 304274880. Its totient is φ = 30670848.

The previous prime is 99403483. The next prime is 99403511. The reversal of 99403488 is 88430499.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×99403488² = 19762106853132288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99403481) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 386656 + ... + 386912.

It is an arithmetic number, because the mean of its divisors is an integer number (2113020).

Almost surely, 2^99403488 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 99403488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152137440).

99403488 is an abundant number, since it is smaller than the sum of its proper divisors (204871392).

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

99403488 is a wasteful number, since it uses less digits than its factorization.

99403488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 99403488 is about 9970.1297885233. The cubic root of 99403488 is about 463.2341209976.

The spelling of 99403488 in words is "ninety-nine million, four hundred three thousand, four hundred eighty-eight".