390057894 has 48 divisors (see below), whose sum is σ = 901974528. Its totient is φ = 121395456.

The previous prime is 390057881. The next prime is 390057923. The reversal of 390057894 is 498750093.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33844 + ... + 43880.

It is an arithmetic number, because the mean of its divisors is an integer number (18791136).

Almost surely, 2^390057894 is an apocalyptic number.

390057894 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 390057894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (450987264).

390057894 is an abundant number, since it is smaller than the sum of its proper divisors (511916634).

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

390057894 is a wasteful number, since it uses less digits than its factorization.

390057894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10189 (or 10186 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 390057894 is about 19749.8833920608. The cubic root of 390057894 is about 730.6505079146.

The spelling of 390057894 in words is "three hundred ninety million, fifty-seven thousand, eight hundred ninety-four".