38268389 has 6 divisors (see below), whose sum is σ = 40005126. Its totient is φ = 36604040.

The previous prime is 38268331. The next prime is 38268401. The reversal of 38268389 is 98386283.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 37149025 + 1119364 = 6095^2 + 1058^2 .

It is a de Polignac number, because none of the positive numbers 2^k-38268389 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 (38268089) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35642 + ... + 36699.

It is an arithmetic number, because the mean of its divisors is an integer number (6667521).

Almost surely, 2^38268389 is an apocalyptic number.

It is an amenable number.

38268389 is a deficient number, since it is larger than the sum of its proper divisors (1736737).

38268389 is an equidigital number, since it uses as much as digits as its factorization.

38268389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72387 (or 72364 counting only the distinct ones).

The product of its digits is 497664, while the sum is 47.

The square root of 38268389 is about 6186.1449223244. The cubic root of 38268389 is about 336.9871908535.

The spelling of 38268389 in words is "thirty-eight million, two hundred sixty-eight thousand, three hundred eighty-nine".