390241785 has 8 divisors (see below), whose sum is σ = 624386880. Its totient is φ = 208128944.

The previous prime is 390241769. The next prime is 390241811. The reversal of 390241785 is 587142093.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 390241785 - 2⁴ = 390241769 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 13008045 + ... + 13008074.

It is an arithmetic number, because the mean of its divisors is an integer number (78048360).

Almost surely, 2^390241785 is an apocalyptic number.

It is an amenable number.

390241785 is a deficient number, since it is larger than the sum of its proper divisors (234145095).

390241785 is a wasteful number, since it uses less digits than its factorization.

390241785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26016127.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 390241785 is about 19754.5383393285. The cubic root of 390241785 is about 730.7653104826.

The spelling of 390241785 in words is "three hundred ninety million, two hundred forty-one thousand, seven hundred eighty-five".