18738801 has 12 divisors (see below), whose sum is σ = 27120912. Its totient is φ = 12467736.

The previous prime is 18738799. The next prime is 18738829. The reversal of 18738801 is 10883781.

It is not a de Polignac number, because 18738801 - 2¹ = 18738799 is a prime.

It is a super-2 number, since 2×18738801² = 702285325835202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18738851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3510 + ... + 7056.

It is an arithmetic number, because the mean of its divisors is an integer number (2260076).

Almost surely, 2^18738801 is an apocalyptic number.

It is an amenable number.

18738801 is a deficient number, since it is larger than the sum of its proper divisors (8382111).

18738801 is a wasteful number, since it uses less digits than its factorization.

18738801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4140 (or 4137 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The square root of 18738801 is about 4328.8336766385. The cubic root of 18738801 is about 265.6117397025.

The spelling of 18738801 in words is "eighteen million, seven hundred thirty-eight thousand, eight hundred one".