390070156 has 48 divisors (see below), whose sum is σ = 816431616. Its totient is φ = 159439104.

The previous prime is 390070147. The next prime is 390070159. The reversal of 390070156 is 651070093.

It is not an unprimeable number, because it can be changed into a prime (390070159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300100 + ... + 301396.

It is an arithmetic number, because the mean of its divisors is an integer number (17008992).

Almost surely, 2^390070156 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 390070156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408215808).

390070156 is an abundant number, since it is smaller than the sum of its proper divisors (426361460).

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

390070156 is a wasteful number, since it uses less digits than its factorization.

390070156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798 (or 1796 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 390070156 is about 19750.1938218337. The cubic root of 390070156 is about 730.6581641650.

The spelling of 390070156 in words is "three hundred ninety million, seventy thousand, one hundred fifty-six".