390223245 has 8 divisors (see below), whose sum is σ = 624357216. Its totient is φ = 208119056.

The previous prime is 390223243. The next prime is 390223247. The reversal of 390223245 is 542322093.

It is an interprime number because it is at equal distance from previous prime (390223243) and next prime (390223247).

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 390223245 - 2¹ = 390223243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390223243) 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, 13007427 + ... + 13007456.

It is an arithmetic number, because the mean of its divisors is an integer number (78044652).

Almost surely, 2^390223245 is an apocalyptic number.

It is an amenable number.

390223245 is a deficient number, since it is larger than the sum of its proper divisors (234133971).

390223245 is a wasteful number, since it uses less digits than its factorization.

390223245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26014891.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 390223245 is about 19754.0690744970. The cubic root of 390223245 is about 730.7537376543.

The spelling of 390223245 in words is "three hundred ninety million, two hundred twenty-three thousand, two hundred forty-five".