18724053 has 16 divisors (see below), whose sum is σ = 26147520. Its totient is φ = 11902464.

The previous prime is 18724051. The next prime is 18724067. The reversal of 18724053 is 35042781.

It is not a de Polignac number, because 18724053 - 2¹ = 18724051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18724053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18724051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5925 + ... + 8517.

It is an arithmetic number, because the mean of its divisors is an integer number (1634220).

Almost surely, 2^18724053 is an apocalyptic number.

It is an amenable number.

18724053 is a deficient number, since it is larger than the sum of its proper divisors (7423467).

18724053 is a wasteful number, since it uses less digits than its factorization.

18724053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 18724053 is about 4327.1298801862. The cubic root of 18724053 is about 265.5420399380.

The spelling of 18724053 in words is "eighteen million, seven hundred twenty-four thousand, fifty-three".