390970545 has 16 divisors (see below), whose sum is σ = 714917760. Its totient is φ = 178729344.

The previous prime is 390970523. The next prime is 390970571. The reversal of 390970545 is 545079093.

It is not a de Polignac number, because 390970545 - 2⁹ = 390970033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 390970497 and 390970506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1861660 + ... + 1861869.

It is an arithmetic number, because the mean of its divisors is an integer number (44682360).

Almost surely, 2^390970545 is an apocalyptic number.

390970545 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

390970545 is a deficient number, since it is larger than the sum of its proper divisors (323947215).

390970545 is a wasteful number, since it uses less digits than its factorization.

390970545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3723544.

The product of its (nonzero) digits is 170100, while the sum is 42.

The square root of 390970545 is about 19772.9751175689. The cubic root of 390970545 is about 731.2199186983.

The spelling of 390970545 in words is "three hundred ninety million, nine hundred seventy thousand, five hundred forty-five".