390226273 has 4 divisors (see below), whose sum is σ = 390701248. Its totient is φ = 389751300.

The previous prime is 390226271. The next prime is 390226297. The reversal of 390226273 is 372622093.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 390226273 - 2¹ = 390226271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390226271) 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, 236253 + ... + 237898.

It is an arithmetic number, because the mean of its divisors is an integer number (97675312).

Almost surely, 2^390226273 is an apocalyptic number.

It is an amenable number.

390226273 is a deficient number, since it is larger than the sum of its proper divisors (474975).

390226273 is an equidigital number, since it uses as much as digits as its factorization.

390226273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474974.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 390226273 is about 19754.1457167856. The cubic root of 390226273 is about 730.7556277832.

The spelling of 390226273 in words is "three hundred ninety million, two hundred twenty-six thousand, two hundred seventy-three".