18528741 has 24 divisors (see below), whose sum is σ = 33369024. Its totient is φ = 9624960.

The previous prime is 18528721. The next prime is 18528751. The reversal of 18528741 is 14782581.

It is not a de Polignac number, because 18528741 - 2⁶ = 18528677 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18528696 and 18528705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18528701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12676 + ... + 14061.

It is an arithmetic number, because the mean of its divisors is an integer number (1390376).

Almost surely, 2^18528741 is an apocalyptic number.

18528741 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18528741 is a deficient number, since it is larger than the sum of its proper divisors (14840283).

18528741 is a wasteful number, since it uses less digits than its factorization.

18528741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26761 (or 26758 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 18528741 is about 4304.5024102676. The cubic root of 18528741 is about 264.6155145734.

The spelling of 18528741 in words is "eighteen million, five hundred twenty-eight thousand, seven hundred forty-one".