390440995 has 8 divisors (see below), whose sum is σ = 535461984. Its totient is φ = 267730944.

The previous prime is 390440987. The next prime is 390441017. The reversal of 390440995 is 599044093.

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 390440995 - 2³ = 390440987 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 5577694 + ... + 5577763.

It is an arithmetic number, because the mean of its divisors is an integer number (66932748).

Almost surely, 2^390440995 is an apocalyptic number.

390440995 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

390440995 is a deficient number, since it is larger than the sum of its proper divisors (145020989).

390440995 is a wasteful number, since it uses less digits than its factorization.

390440995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11155469.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 390440995 is about 19759.5798285287. The cubic root of 390440995 is about 730.8896359640.

The spelling of 390440995 in words is "three hundred ninety million, four hundred forty thousand, nine hundred ninety-five".