9220040 has 16 divisors (see below), whose sum is σ = 20745180. Its totient is φ = 3688000.

The previous prime is 9220031. The next prime is 9220049. The reversal of 9220040 is 400229.

9220040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9220031) and next prime (9220049).

It can be written as a sum of positive squares in 2 ways, for example, as 9205156 + 14884 = 3034^2 + 122^2 .

It is not an unprimeable number, because it can be changed into a prime (9220049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115211 + ... + 115290.

Almost surely, 2^9220040 is an apocalyptic number.

It is an amenable number.

9220040 is an abundant number, since it is smaller than the sum of its proper divisors (11525140).

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

9220040 is a wasteful number, since it uses less digits than its factorization.

9220040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230512 (or 230508 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 9220040 is about 3036.4518767799. The cubic root of 9220040 is about 209.6899430428.

Adding to 9220040 its reverse (400229), we get a palindrome (9620269).

The spelling of 9220040 in words is "nine million, two hundred twenty thousand, forty".