390469243 has 8 divisors (see below), whose sum is σ = 415519200. Its totient is φ = 365650560.

The previous prime is 390469217. The next prime is 390469249. The reversal of 390469243 is 342964093.

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

It is a de Polignac number, because none of the positive numbers 2^k-390469243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 390469196 and 390469205.

It is not an unprimeable number, because it can be changed into a prime (390469249) 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, 54328 + ... + 61093.

It is an arithmetic number, because the mean of its divisors is an integer number (51939900).

Almost surely, 2^390469243 is an apocalyptic number.

390469243 is a deficient number, since it is larger than the sum of its proper divisors (25049957).

390469243 is a wasteful number, since it uses less digits than its factorization.

390469243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115637.

The product of its (nonzero) digits is 139968, while the sum is 40.

The square root of 390469243 is about 19760.2946081277. The cubic root of 390469243 is about 730.9072619074.

The spelling of 390469243 in words is "three hundred ninety million, four hundred sixty-nine thousand, two hundred forty-three".