38503836 has 72 divisors (see below), whose sum is σ = 115373440. Its totient is φ = 10999152.

The previous prime is 38503819. The next prime is 38503837. The reversal of 38503836 is 63830583.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 38503836.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38503837) 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, 3975 + ... + 9633.

Almost surely, 2^38503836 is an apocalyptic number.

38503836 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38503836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57686720).

38503836 is an abundant number, since it is smaller than the sum of its proper divisors (76869604).

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

38503836 is a wasteful number, since it uses less digits than its factorization.

38503836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5685 (or 5671 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 38503836 is about 6205.1459289851. The cubic root of 38503836 is about 337.6768850554.

The spelling of 38503836 in words is "thirty-eight million, five hundred three thousand, eight hundred thirty-six".