1818089424 has 60 divisors (see below), whose sum is σ = 5225657476. Its totient is φ = 589648896.

The previous prime is 1818089411. The next prime is 1818089473. The reversal of 1818089424 is 4249808181.

It can be written as a sum of positive squares in 2 ways, for example, as 1219406400 + 598683024 = 34920^2 + 24468^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1818089424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165289 + ... + 175944.

Almost surely, 2^1818089424 is an apocalyptic number.

It is an amenable number.

1818089424 is an abundant number, since it is smaller than the sum of its proper divisors (3407568052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1818089424 is a wasteful number, since it uses less digits than its factorization.

1818089424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341284 (or 341275 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 45.

The square root of 1818089424 is about 42639.0598395415. The cubic root of 1818089424 is about 1220.5017697718.

The spelling of 1818089424 in words is "one billion, eight hundred eighteen million, eighty-nine thousand, four hundred twenty-four".