9020919312 has 30 divisors (see below), whose sum is σ = 25246045422. Its totient is φ = 3006973056.

The previous prime is 9020919311. The next prime is 9020919337. The reversal of 9020919312 is 2139190209.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5344194816 + 3676724496 = 73104^2 + 60636^2 .

It is a super-2 number, since 2×9020919312² (a number of 21 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (9020919311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31322493 + ... + 31322780.

Almost surely, 2^9020919312 is an apocalyptic number.

It is an amenable number.

9020919312 is an abundant number, since it is smaller than the sum of its proper divisors (16225126110).

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

9020919312 is a wasteful number, since it uses less digits than its factorization.

9020919312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62645287 (or 62645278 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 9020919312 is about 94978.5202664266. The cubic root of 9020919312 is about 2081.6942027492.

The spelling of 9020919312 in words is "nine billion, twenty million, nine hundred nineteen thousand, three hundred twelve".