18803057 has 8 divisors (see below), whose sum is σ = 23142336. Its totient is φ = 14877072.

The previous prime is 18803053. The next prime is 18803077. The reversal of 18803057 is 75030881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18803057 - 2² = 18803053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18803053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103223 + ... + 103404.

It is an arithmetic number, because the mean of its divisors is an integer number (2892792).

Almost surely, 2^18803057 is an apocalyptic number.

It is an amenable number.

18803057 is a deficient number, since it is larger than the sum of its proper divisors (4339279).

18803057 is a wasteful number, since it uses less digits than its factorization.

18803057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206647.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 18803057 is about 4336.2491856442. The cubic root of 18803057 is about 265.9149906429.

The spelling of 18803057 in words is "eighteen million, eight hundred three thousand, fifty-seven".