18341401 has 6 divisors (see below), whose sum is σ = 19860990. Its totient is φ = 16930368.

The previous prime is 18341399. The next prime is 18341417. The reversal of 18341401 is 10414381.

It can be written as a sum of positive squares in 3 ways, for example, as 1334025 + 17007376 = 1155^2 + 4124^2 .

It is not a de Polignac number, because 18341401 - 2¹ = 18341399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18341431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54096 + ... + 54433.

It is an arithmetic number, because the mean of its divisors is an integer number (3310165).

Almost surely, 2^18341401 is an apocalyptic number.

It is an amenable number.

18341401 is a deficient number, since it is larger than the sum of its proper divisors (1519589).

18341401 is a wasteful number, since it uses less digits than its factorization.

18341401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108555 (or 108542 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 18341401 is about 4282.6861897646. The cubic root of 18341401 is about 263.7206689304.

Adding to 18341401 its reverse (10414381), we get a palindrome (28755782).

The spelling of 18341401 in words is "eighteen million, three hundred forty-one thousand, four hundred one".