390513766 has 16 divisors (see below), whose sum is σ = 635357520. Its totient is φ = 179288320.

The previous prime is 390513763. The next prime is 390513779. The reversal of 390513766 is 667315093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390513763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138676 + ... + 141463.

It is an arithmetic number, because the mean of its divisors is an integer number (39709845).

Almost surely, 2^390513766 is an apocalyptic number.

390513766 is a deficient number, since it is larger than the sum of its proper divisors (244843754).

390513766 is a wasteful number, since it uses less digits than its factorization.

390513766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280199.

The product of its (nonzero) digits is 102060, while the sum is 40.

The square root of 390513766 is about 19761.4211533483. The cubic root of 390513766 is about 730.9350412590.

It can be divided in two parts, 3905 and 13766, that added together give a palindrome (17671).

The spelling of 390513766 in words is "three hundred ninety million, five hundred thirteen thousand, seven hundred sixty-six".