18341445 has 16 divisors (see below), whose sum is σ = 29901312. Its totient is φ = 9597120.

The previous prime is 18341437. The next prime is 18341459. The reversal of 18341445 is 54414381.

It is not a de Polignac number, because 18341445 - 2³ = 18341437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10741 + ... + 12330.

It is an arithmetic number, because the mean of its divisors is an integer number (1868832).

Almost surely, 2^18341445 is an apocalyptic number.

18341445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18341445 is a deficient number, since it is larger than the sum of its proper divisors (11559867).

18341445 is a wasteful number, since it uses less digits than its factorization.

18341445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23132.

The product of its digits is 7680, while the sum is 30.

The square root of 18341445 is about 4282.6913267244. The cubic root of 18341445 is about 263.7208798140.

The spelling of 18341445 in words is "eighteen million, three hundred forty-one thousand, four hundred forty-five".