18119407 has 8 divisors (see below), whose sum is σ = 19688960. Its totient is φ = 16611480.

The previous prime is 18119363. The next prime is 18119411. The reversal of 18119407 is 70491181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18119407 - 2¹⁵ = 18086639 is a prime.

It is a super-3 number, since 3×18119407³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18119107) 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, 14793 + ... + 15970.

It is an arithmetic number, because the mean of its divisors is an integer number (2461120).

Almost surely, 2^18119407 is an apocalyptic number.

18119407 is a deficient number, since it is larger than the sum of its proper divisors (1569553).

18119407 is a wasteful number, since it uses less digits than its factorization.

18119407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30813.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 18119407 is about 4256.6896762625. The cubic root of 18119407 is about 262.6523717029.

The spelling of 18119407 in words is "eighteen million, one hundred nineteen thousand, four hundred seven".