9942231 has 8 divisors (see below), whose sum is σ = 14276080. Its totient is φ = 6118272.

The previous prime is 9942223. The next prime is 9942269. The reversal of 9942231 is 1322499.

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

It is not a de Polignac number, because 9942231 - 2³ = 9942223 is a prime.

It is a super-2 number, since 2×9942231² = 197695914514722, which contains 22 as substring.

9942231 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9942211) 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, 127426 + ... + 127503.

It is an arithmetic number, because the mean of its divisors is an integer number (1784510).

Almost surely, 2^9942231 is an apocalyptic number.

9942231 is a deficient number, since it is larger than the sum of its proper divisors (4333849).

9942231 is a wasteful number, since it uses less digits than its factorization.

9942231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254945.

The product of its digits is 3888, while the sum is 30.

The square root of 9942231 is about 3153.1303493513. The cubic root of 9942231 is about 215.0278024259.

The spelling of 9942231 in words is "nine million, nine hundred forty-two thousand, two hundred thirty-one".