18460045 has 16 divisors (see below), whose sum is σ = 24031728. Its totient is φ = 13557760.

The previous prime is 18460033. The next prime is 18460051. The reversal of 18460045 is 54006481.

It can be written as a sum of positive squares in 8 ways, for example, as 21609 + 18438436 = 147^2 + 4294^2 .

It is not a de Polignac number, because 18460045 - 2²¹ = 16362893 is a prime.

It is a super-2 number, since 2×18460045² = 681546522804050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18459995 and 18460022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 837 + ... + 6133.

It is an arithmetic number, because the mean of its divisors is an integer number (1501983).

Almost surely, 2^18460045 is an apocalyptic number.

It is an amenable number.

18460045 is a deficient number, since it is larger than the sum of its proper divisors (5571683).

18460045 is a wasteful number, since it uses less digits than its factorization.

18460045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5360.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 18460045 is about 4296.5154485932. The cubic root of 18460045 is about 264.2880856165.

The spelling of 18460045 in words is "eighteen million, four hundred sixty thousand, forty-five".