390070236 has 72 divisors (see below), whose sum is σ = 975095856. Its totient is φ = 121333760.

The previous prime is 390070207. The next prime is 390070259. The reversal of 390070236 is 632070093.

It is a happy number.

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 474706 + ... + 475526.

It is an arithmetic number, because the mean of its divisors is an integer number (13542998).

Almost surely, 2^390070236 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 390070236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (487547928).

390070236 is an abundant number, since it is smaller than the sum of its proper divisors (585025620).

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

390070236 is a wasteful number, since it uses less digits than its factorization.

390070236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999 (or 980 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 390070236 is about 19750.1958471302. The cubic root of 390070236 is about 730.6582141155.

The spelling of 390070236 in words is "three hundred ninety million, seventy thousand, two hundred thirty-six".