38404069 has 12 divisors (see below), whose sum is σ = 42367948. Its totient is φ = 34784640.

The previous prime is 38404061. The next prime is 38404081. The reversal of 38404069 is 96040483.

It can be written as a sum of positive squares in 2 ways, for example, as 22896225 + 15507844 = 4785^2 + 3938^2 .

It is not a de Polignac number, because 38404069 - 2³ = 38404061 is a prime.

It is a super-2 number, since 2×38404069² = 2949745031513522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38404061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52027 + ... + 52759.

Almost surely, 2^38404069 is an apocalyptic number.

It is an amenable number.

38404069 is a deficient number, since it is larger than the sum of its proper divisors (3963879).

38404069 is a wasteful number, since it uses less digits than its factorization.

38404069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188 (or 1177 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 38404069 is about 6197.1016612607. The cubic root of 38404069 is about 337.3849821148.

The spelling of 38404069 in words is "thirty-eight million, four hundred four thousand, sixty-nine".