38418438 has 16 divisors (see below), whose sum is σ = 77169456. Its totient is φ = 12750720.

The previous prime is 38418433. The next prime is 38418439. The reversal of 38418438 is 83481483.

It is a junction number, because it is equal to n+sod(n) for n = 38418396 and 38418405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38418431) 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, 12343 + ... + 15138.

It is an arithmetic number, because the mean of its divisors is an integer number (4823091).

Almost surely, 2^38418438 is an apocalyptic number.

38418438 is an abundant number, since it is smaller than the sum of its proper divisors (38751018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38418438 is a wasteful number, since it uses less digits than its factorization.

38418438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27719.

The product of its digits is 73728, while the sum is 39.

The square root of 38418438 is about 6198.2608851193. The cubic root of 38418438 is about 337.4270547427.

The spelling of 38418438 in words is "thirty-eight million, four hundred eighteen thousand, four hundred thirty-eight".