99018504 has 128 divisors (see below), whose sum is σ = 299376000. Its totient is φ = 30143232.

The previous prime is 99018449. The next prime is 99018509. The reversal of 99018504 is 40581099.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (99018509) 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, 502534 + ... + 502730.

It is an arithmetic number, because the mean of its divisors is an integer number (2338875).

Almost surely, 2^99018504 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 99018504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149688000).

99018504 is an abundant number, since it is smaller than the sum of its proper divisors (200357496).

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

99018504 is a wasteful number, since it uses less digits than its factorization.

99018504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 99018504 is about 9950.8041886071. The cubic root of 99018504 is about 462.6353209096.

The spelling of 99018504 in words is "ninety-nine million, eighteen thousand, five hundred four".