390038005 has 16 divisors (see below), whose sum is σ = 539913600. Its totient is φ = 264952512.

The previous prime is 390037969. The next prime is 390038009. The reversal of 390038005 is 500830093.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 390038005 - 2²³ = 381649397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390038009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48330 + ... + 55819.

It is an arithmetic number, because the mean of its divisors is an integer number (33744600).

Almost surely, 2^390038005 is an apocalyptic number.

390038005 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

390038005 is a deficient number, since it is larger than the sum of its proper divisors (149875595).

390038005 is a wasteful number, since it uses less digits than its factorization.

390038005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104268.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 390038005 is about 19749.3798636818. The cubic root of 390038005 is about 730.6380891129.

Adding to 390038005 its reverse (500830093), we get a palindrome (890868098).

It can be divided in two parts, 3900 and 38005, that added together give a triangular number (41905 = T₂₈₉).

The spelling of 390038005 in words is "three hundred ninety million, thirty-eight thousand, five".