99542736 has 80 divisors (see below), whose sum is σ = 294981120. Its totient is φ = 32106240.

The previous prime is 99542719. The next prime is 99542741. The reversal of 99542736 is 63724599.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 99542691 and 99542700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9676 + ... + 17108.

It is an arithmetic number, because the mean of its divisors is an integer number (3687264).

Almost surely, 2^99542736 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 99542736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147490560).

99542736 is an abundant number, since it is smaller than the sum of its proper divisors (195438384).

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

99542736 is a wasteful number, since it uses less digits than its factorization.

99542736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7481 (or 7469 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 99542736 is about 9977.1106037770. The cubic root of 99542736 is about 463.4503251086.

The spelling of 99542736 in words is "ninety-nine million, five hundred forty-two thousand, seven hundred thirty-six".