392272231 has 8 divisors (see below), whose sum is σ = 428397984. Its totient is φ = 356996640.

The previous prime is 392272219. The next prime is 392272249. The reversal of 392272231 is 132272293.

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

It is not a de Polignac number, because 392272231 - 2⁷ = 392272103 is a prime.

It is a super-2 number, since 2×392272231² = 307755006427434722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 392272193 and 392272202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (392272031) 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, 211576 + ... + 213421.

It is an arithmetic number, because the mean of its divisors is an integer number (53549748).

Almost surely, 2^392272231 is an apocalyptic number.

392272231 is a deficient number, since it is larger than the sum of its proper divisors (36125753).

392272231 is a wasteful number, since it uses less digits than its factorization.

392272231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425081.

The product of its digits is 9072, while the sum is 31.

The square root of 392272231 is about 19805.8635509790. The cubic root of 392272231 is about 732.0305205655.

The spelling of 392272231 in words is "three hundred ninety-two million, two hundred seventy-two thousand, two hundred thirty-one".