9220431 has 8 divisors (see below), whose sum is σ = 13411584. Its totient is φ = 5588120.

The previous prime is 9220429. The next prime is 9220439. The reversal of 9220431 is 1340229.

9220431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9220431 - 2¹ = 9220429 is a prime.

It is a super-2 number, since 2×9220431² = 170032695651522, which contains 22 as substring.

9220431 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 9220398 and 9220407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9220439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139671 + ... + 139736.

It is an arithmetic number, because the mean of its divisors is an integer number (1676448).

Almost surely, 2^9220431 is an apocalyptic number.

9220431 is a deficient number, since it is larger than the sum of its proper divisors (4191153).

9220431 is a wasteful number, since it uses less digits than its factorization.

9220431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279421.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 9220431 is about 3036.5162604537. The cubic root of 9220431 is about 209.6929071517.

It can be divided in two parts, 92204 and 31, that added together give a triangular number (92235 = T₄₂₉).

The spelling of 9220431 in words is "nine million, two hundred twenty thousand, four hundred thirty-one".