38090709 has 8 divisors (see below), whose sum is σ = 56430720. Its totient is φ = 25393788.

The previous prime is 38090707. The next prime is 38090711. The reversal of 38090709 is 90709083.

It is an interprime number because it is at equal distance from previous prime (38090707) and next prime (38090711).

It is not a de Polignac number, because 38090709 - 2¹ = 38090707 is a prime.

It is a super-2 number, since 2×38090709² = 2901804224245362, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38090707) 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, 705357 + ... + 705410.

It is an arithmetic number, because the mean of its divisors is an integer number (7053840).

Almost surely, 2^38090709 is an apocalyptic number.

It is an amenable number.

38090709 is a deficient number, since it is larger than the sum of its proper divisors (18340011).

38090709 is a wasteful number, since it uses less digits than its factorization.

38090709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410776 (or 1410770 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 38090709 is about 6171.7670889300. The cubic root of 38090709 is about 336.4648381297.

The spelling of 38090709 in words is "thirty-eight million, ninety thousand, seven hundred nine".