18246745 has 24 divisors (see below), whose sum is σ = 25237440. Its totient is φ = 12558240.

The previous prime is 18246737. The next prime is 18246827. The reversal of 18246745 is 54764281.

It is not a de Polignac number, because 18246745 - 2³ = 18246737 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19396 + ... + 20314.

It is an arithmetic number, because the mean of its divisors is an integer number (1051560).

Almost surely, 2^18246745 is an apocalyptic number.

It is an amenable number.

18246745 is a deficient number, since it is larger than the sum of its proper divisors (6990695).

18246745 is a wasteful number, since it uses less digits than its factorization.

18246745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973 (or 954 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 18246745 is about 4271.6208867361. The cubic root of 18246745 is about 263.2662178297.

The spelling of 18246745 in words is "eighteen million, two hundred forty-six thousand, seven hundred forty-five".