390041093 has 8 divisors (see below), whose sum is σ = 424204536. Its totient is φ = 356472000.

The previous prime is 390041059. The next prime is 390041147. The reversal of 390041093 is 390140093.

It can be written as a sum of positive squares in 4 ways, for example, as 228674884 + 161366209 = 15122^2 + 12703^2 .

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 390041093 - 2⁸ = 390040837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390041023) 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, 147218 + ... + 149843.

It is an arithmetic number, because the mean of its divisors is an integer number (53025567).

Almost surely, 2^390041093 is an apocalyptic number.

It is an amenable number.

390041093 is a deficient number, since it is larger than the sum of its proper divisors (34163443).

390041093 is a wasteful number, since it uses less digits than its factorization.

390041093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297175.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 390041093 is about 19749.4580431970. The cubic root of 390041093 is about 730.6400173049.

The spelling of 390041093 in words is "three hundred ninety million, forty-one thousand, ninety-three".