1818212746 has 8 divisors (see below), whose sum is σ = 3116936160. Its totient is φ = 779234028.

The previous prime is 1818212699. The next prime is 1818212791. The reversal of 1818212746 is 6472128181.

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

It is a junction number, because it is equal to n+sod(n) for n = 1818212699 and 1818212708.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64936156 + ... + 64936183.

It is an arithmetic number, because the mean of its divisors is an integer number (389617020).

Almost surely, 2^1818212746 is an apocalyptic number.

1818212746 is a deficient number, since it is larger than the sum of its proper divisors (1298723414).

1818212746 is a wasteful number, since it uses less digits than its factorization.

1818212746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129872348.

The product of its digits is 43008, while the sum is 40.

The square root of 1818212746 is about 42640.5059303944. The cubic root of 1818212746 is about 1220.5293649154.

The spelling of 1818212746 in words is "one billion, eight hundred eighteen million, two hundred twelve thousand, seven hundred forty-six".