99111402 has 72 divisors (see below), whose sum is σ = 240259968. Its totient is φ = 29484000.

The previous prime is 99111367. The next prime is 99111403. The reversal of 99111402 is 20411199.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (99111403) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 93777 + ... + 94827.

It is an arithmetic number, because the mean of its divisors is an integer number (3336944).

Almost surely, 2^99111402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99111402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120129984).

99111402 is an abundant number, since it is smaller than the sum of its proper divisors (141148566).

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

99111402 is a wasteful number, since it uses less digits than its factorization.

99111402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116 (or 1100 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 99111402 is about 9955.4709582219. The cubic root of 99111402 is about 462.7799553663.

The spelling of 99111402 in words is "ninety-nine million, one hundred eleven thousand, four hundred two".