19070818 has 16 divisors (see below), whose sum is σ = 32147136. Its totient is φ = 8418960.

The previous prime is 19070809. The next prime is 19070833. The reversal of 19070818 is 81807091.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15348 + ... + 16543.

It is an arithmetic number, because the mean of its divisors is an integer number (2009196).

Almost surely, 2^19070818 is an apocalyptic number.

19070818 is a deficient number, since it is larger than the sum of its proper divisors (13076318).

19070818 is a wasteful number, since it uses less digits than its factorization.

19070818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31929.

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

The square root of 19070818 is about 4367.0147698399. The cubic root of 19070818 is about 267.1712816644.

The spelling of 19070818 in words is "nineteen million, seventy thousand, eight hundred eighteen".