38020818 has 32 divisors (see below), whose sum is σ = 85635072. Its totient is φ = 11149200.

The previous prime is 38020783. The next prime is 38020819. The reversal of 38020818 is 81802083.

It is not an unprimeable number, because it can be changed into a prime (38020819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7246 + ... + 11337.

It is an arithmetic number, because the mean of its divisors is an integer number (2676096).

Almost surely, 2^38020818 is an apocalyptic number.

38020818 is an abundant number, since it is smaller than the sum of its proper divisors (47614254).

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

38020818 is a wasteful number, since it uses less digits than its factorization.

38020818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18630.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 38020818 is about 6166.1023345384. The cubic root of 38020818 is about 336.2589238613.

The spelling of 38020818 in words is "thirty-eight million, twenty thousand, eight hundred eighteen".