9900026724 has 48 divisors (see below), whose sum is σ = 26552711808. Its totient is φ = 2812224768.

The previous prime is 9900026711. The next prime is 9900026729. The reversal of 9900026724 is 4276200099.

It is not an unprimeable number, because it can be changed into a prime (9900026729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326097 + ... + 355160.

It is an arithmetic number, because the mean of its divisors is an integer number (553181496).

Almost surely, 2^9900026724 is an apocalyptic number.

It is an amenable number.

9900026724 is an abundant number, since it is smaller than the sum of its proper divisors (16652685084).

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

9900026724 is a wasteful number, since it uses less digits than its factorization.

9900026724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681444 (or 681442 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 9900026724 is about 99498.8780037242. The cubic root of 9900026724 is about 2147.2311010897.

The spelling of 9900026724 in words is "nine billion, nine hundred million, twenty-six thousand, seven hundred twenty-four".