18819070 has 8 divisors (see below), whose sum is σ = 33874344. Its totient is φ = 7527624.

The previous prime is 18819061. The next prime is 18819107. The reversal of 18819070 is 7091881.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 940944 + ... + 940963.

It is an arithmetic number, because the mean of its divisors is an integer number (4234293).

Almost surely, 2^18819070 is an apocalyptic number.

18819070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18819070 is a deficient number, since it is larger than the sum of its proper divisors (15055274).

18819070 is a wasteful number, since it uses less digits than its factorization.

18819070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881914.

The product of its (nonzero) digits is 4032, while the sum is 34.

The square root of 18819070 is about 4338.0952041190. The cubic root of 18819070 is about 265.9904551195.

The spelling of 18819070 in words is "eighteen million, eight hundred nineteen thousand, seventy".