38803818 has 16 divisors (see below), whose sum is σ = 77678496. Its totient is φ = 12922800.

The previous prime is 38803813. The next prime is 38803837. The reversal of 38803818 is 81830883.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38803813) 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, 6493 + ... + 10943.

It is an arithmetic number, because the mean of its divisors is an integer number (4854906).

Almost surely, 2^38803818 is an apocalyptic number.

38803818 is an abundant number, since it is smaller than the sum of its proper divisors (38874678).

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

38803818 is a wasteful number, since it uses less digits than its factorization.

38803818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5909.

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 38803818 is about 6229.2710649000. The cubic root of 38803818 is about 338.5515602699.

It can be divided in two parts, 38803 and 818, that added together give a triangular number (39621 = T₂₈₁).

The spelling of 38803818 in words is "thirty-eight million, eight hundred three thousand, eight hundred eighteen".