38418500 has 24 divisors (see below), whose sum is σ = 83907096. Its totient is φ = 15367200.

The previous prime is 38418493. The next prime is 38418503. The reversal of 38418500 is 581483.

It can be written as a sum of positive squares in 4 ways, for example, as 2033476 + 36385024 = 1426^2 + 6032^2 .

It is a super-2 number, since 2×38418500² = 2951962284500000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38418503) 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, 37919 + ... + 38918.

It is an arithmetic number, because the mean of its divisors is an integer number (3496129).

Almost surely, 2^38418500 is an apocalyptic number.

It is an amenable number.

38418500 is an abundant number, since it is smaller than the sum of its proper divisors (45488596).

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

38418500 is a wasteful number, since it uses less digits than its factorization.

38418500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76856 (or 76844 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 38418500 is about 6198.2658865202. The cubic root of 38418500 is about 337.4272362568.

Adding to 38418500 its reverse (581483), we get a palindrome (38999983).

The spelling of 38418500 in words is "thirty-eight million, four hundred eighteen thousand, five hundred".