38406565 has 8 divisors (see below), whose sum is σ = 46182528. Its totient is φ = 30662160.

The previous prime is 38406559. The next prime is 38406593. The reversal of 38406565 is 56560483.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38406565 - 2¹¹ = 38404517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5121 + ... + 10150.

It is an arithmetic number, because the mean of its divisors is an integer number (5772816).

Almost surely, 2^38406565 is an apocalyptic number.

It is an amenable number.

38406565 is a deficient number, since it is larger than the sum of its proper divisors (7775963).

38406565 is a wasteful number, since it uses less digits than its factorization.

38406565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15779.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 38406565 is about 6197.3030424532. The cubic root of 38406565 is about 337.3922911899.

The spelling of 38406565 in words is "thirty-eight million, four hundred six thousand, five hundred sixty-five".