19134418 has 16 divisors (see below), whose sum is σ = 30599424. Its totient is φ = 8942400.

The previous prime is 19134397. The next prime is 19134433. The reversal of 19134418 is 81443191.

It is a super-2 number, since 2×19134418² = 732251904397448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19134418.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3271 + ... + 6997.

It is an arithmetic number, because the mean of its divisors is an integer number (1912464).

Almost surely, 2^19134418 is an apocalyptic number.

19134418 is a deficient number, since it is larger than the sum of its proper divisors (11465006).

19134418 is a wasteful number, since it uses less digits than its factorization.

19134418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3897.

The product of its digits is 3456, while the sum is 31.

The square root of 19134418 is about 4374.2905710526. The cubic root of 19134418 is about 267.4679520229.

The spelling of 19134418 in words is "nineteen million, one hundred thirty-four thousand, four hundred eighteen".