9000990072 has 48 divisors (see below), whose sum is σ = 25218297000. Its totient is φ = 2896869696.

The previous prime is 9000990071. The next prime is 9000990083. The reversal of 9000990072 is 2700990009.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9000990071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2153322 + ... + 2157497.

Almost surely, 2^9000990072 is an apocalyptic number.

It is an amenable number.

9000990072 is an abundant number, since it is smaller than the sum of its proper divisors (16217306928).

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

9000990072 is a wasteful number, since it uses less digits than its factorization.

9000990072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4310860 (or 4310853 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 9000990072 is about 94873.5477991626. The cubic root of 9000990072 is about 2080.1600955422.

It can be divided in two parts, 90009 and 90072, that added together give a palindrome (180081).

The spelling of 9000990072 in words is "nine billion, nine hundred ninety thousand, seventy-two".