181414394 has 16 divisors (see below), whose sum is σ = 327364800. Its totient is φ = 73656864.

The previous prime is 181414379. The next prime is 181414411. The reversal of 181414394 is 493414181.

181414394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×181414394² = 65822364700774472, which contains 22 as substring.

It is a Curzon number.

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, 340739 + ... + 341270.

It is an arithmetic number, because the mean of its divisors is an integer number (20460300).

Almost surely, 2^181414394 is an apocalyptic number.

181414394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

181414394 is a deficient number, since it is larger than the sum of its proper divisors (145950406).

181414394 is a wasteful number, since it uses less digits than its factorization.

181414394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682037.

The product of its digits is 13824, while the sum is 35.

The square root of 181414394 is about 13469.0160739380. The cubic root of 181414394 is about 566.0966447113.

The spelling of 181414394 in words is "one hundred eighty-one million, four hundred fourteen thousand, three hundred ninety-four".