9212090790 has 64 divisors (see below), whose sum is σ = 25343976960. Its totient is φ = 2099243520.

The previous prime is 9212090779. The next prime is 9212090791. The reversal of 9212090790 is 970902129.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9212090791) 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, 3246 + ... + 135774.

It is an arithmetic number, because the mean of its divisors is an integer number (395999640).

Almost surely, 2^9212090790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9212090790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12671988480).

9212090790 is an abundant number, since it is smaller than the sum of its proper divisors (16131886170).

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

9212090790 is a wasteful number, since it uses less digits than its factorization.

9212090790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132877.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 9212090790 is about 95979.6373716842. The cubic root of 9212090790 is about 2096.2966316468.

The spelling of 9212090790 in words is "nine billion, two hundred twelve million, ninety thousand, seven hundred ninety".