390267774 has 64 divisors (see below), whose sum is σ = 940188480. Its totient is φ = 119283840.

The previous prime is 390267769. The next prime is 390267781. The reversal of 390267774 is 477762093.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108444 + ... + 111984.

It is an arithmetic number, because the mean of its divisors is an integer number (14690445).

Almost surely, 2^390267774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 390267774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (470094240).

390267774 is an abundant number, since it is smaller than the sum of its proper divisors (549920706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

390267774 is a wasteful number, since it uses less digits than its factorization.

390267774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3722 (or 3716 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 45.

The square root of 390267774 is about 19755.1961265891. The cubic root of 390267774 is about 730.7815324239.

The spelling of 390267774 in words is "three hundred ninety million, two hundred sixty-seven thousand, seven hundred seventy-four".