390168448 has 32 divisors (see below), whose sum is σ = 781677000. Its totient is φ = 193982976.

The previous prime is 390168433. The next prime is 390168461. The reversal of 390168448 is 844861093.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14398 + ... + 31426.

Almost surely, 2^390168448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 390168448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (390838500).

390168448 is an abundant number, since it is smaller than the sum of its proper divisors (391508552).

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

390168448 is a wasteful number, since it uses less digits than its factorization.

390168448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17222 (or 17210 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 390168448 is about 19752.6820457375. The cubic root of 390168448 is about 730.7195307505.

The spelling of 390168448 in words is "three hundred ninety million, one hundred sixty-eight thousand, four hundred forty-eight".