7229331 has 20 divisors (see below), whose sum is σ = 10890000. Its totient is φ = 4779216.

The previous prime is 7229297. The next prime is 7229333. The reversal of 7229331 is 1339227.

It is a de Polignac number, because none of the positive numbers 2^k-7229331 is a prime.

It is a super-2 number, since 2×7229331² = 104526453415122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 7229295 and 7229304.

It is not an unprimeable number, because it can be changed into a prime (7229333) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11770 + ... + 12368.

It is an arithmetic number, because the mean of its divisors is an integer number (544500).

Almost surely, 2^7229331 is an apocalyptic number.

7229331 is a deficient number, since it is larger than the sum of its proper divisors (3660669).

7229331 is a wasteful number, since it uses less digits than its factorization.

7229331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760 (or 751 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 7229331 is about 2688.7415271833. The cubic root of 7229331 is about 193.3597324897.

It can be divided in two parts, 72 and 29331, that added together give a triangular number (29403 = T₂₄₂).

The spelling of 7229331 in words is "seven million, two hundred twenty-nine thousand, three hundred thirty-one".