18825045 has 32 divisors (see below), whose sum is σ = 31321728. Its totient is φ = 9646848.

The previous prime is 18825041. The next prime is 18825047. The reversal of 18825045 is 54052881.

It is not a de Polignac number, because 18825045 - 2² = 18825041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18824997 and 18825015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18825041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59227 + ... + 59543.

It is an arithmetic number, because the mean of its divisors is an integer number (978804).

Almost surely, 2^18825045 is an apocalyptic number.

18825045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18825045 is a deficient number, since it is larger than the sum of its proper divisors (12496683).

18825045 is a wasteful number, since it uses less digits than its factorization.

18825045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469.

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 18825045 is about 4338.7838157714. The cubic root of 18825045 is about 266.0186025394.

The spelling of 18825045 in words is "eighteen million, eight hundred twenty-five thousand, forty-five".