390070 has 16 divisors (see below), whose sum is σ = 739440. Its totient is φ = 147744.

The previous prime is 390067. The next prime is 390077. The reversal of 390070 is 70093.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 837 + ... + 1216.

It is an arithmetic number, because the mean of its divisors is an integer number (46215).

2³⁹⁰⁰⁷⁰ is an apocalyptic number.

390070 is a deficient number, since it is larger than the sum of its proper divisors (349370).

390070 is a wasteful number, since it uses less digits than its factorization.

390070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079.

The product of its (nonzero) digits is 189, while the sum is 19.

The square root of 390070 is about 624.5558421791. Note that the first 3 decimals coincide. The cubic root of 390070 is about 73.0658066761.

The spelling of 390070 in words is "three hundred ninety thousand, seventy".