38018826 has 48 divisors (see below), whose sum is σ = 85910760. Its totient is φ = 12136320.

The previous prime is 38018821. The next prime is 38018881. The reversal of 38018826 is 62881083.

It can be written as a sum of positive squares in 4 ways, for example, as 29322225 + 8696601 = 5415^2 + 2949^2 .

It is a super-2 number, since 2×38018826² = 2890862260836552, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38018821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90096 + ... + 90516.

Almost surely, 2^38018826 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38018826, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42955380).

38018826 is an abundant number, since it is smaller than the sum of its proper divisors (47891934).

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

38018826 is a wasteful number, since it uses less digits than its factorization.

38018826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 38018826 is about 6165.9408041271. The cubic root of 38018826 is about 336.2530512937.

The spelling of 38018826 in words is "thirty-eight million, eighteen thousand, eight hundred twenty-six".