390226789 has 8 divisors (see below), whose sum is σ = 413424000. Its totient is φ = 367056576.

The previous prime is 390226787. The next prime is 390226799. The reversal of 390226789 is 987622093.

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 390226789 - 2¹ = 390226787 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390226787) 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, 28242 + ... + 39724.

It is an arithmetic number, because the mean of its divisors is an integer number (51678000).

Almost surely, 2^390226789 is an apocalyptic number.

It is an amenable number.

390226789 is a deficient number, since it is larger than the sum of its proper divisors (23197211).

390226789 is a wasteful number, since it uses less digits than its factorization.

390226789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13499.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 390226789 is about 19754.1587773309. The cubic root of 390226789 is about 730.7559498781.

The spelling of 390226789 in words is "three hundred ninety million, two hundred twenty-six thousand, seven hundred eighty-nine".