390601250 has 90 divisors (see below), whose sum is σ = 811659717. Its totient is φ = 140868000.

The previous prime is 390601247. The next prime is 390601279. The reversal of 390601250 is 52106093.

390601250 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 152300281 + 238300969 = 12341^2 + 15437^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=13975.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 9083729 + ... + 9083771.

Almost surely, 2^390601250 is an apocalyptic number.

390601250 is an abundant number, since it is smaller than the sum of its proper divisors (421058467).

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

390601250 is an equidigital number, since it uses as much as digits as its factorization.

390601250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 390601250 is about 19763.6345341640. The cubic root of 390601250 is about 730.9896192297.

The spelling of 390601250 in words is "three hundred ninety million, six hundred one thousand, two hundred fifty".