1800980242 has 8 divisors (see below), whose sum is σ = 2701837116. Its totient is φ = 900367872.

The previous prime is 1800980219. The next prime is 1800980273. The reversal of 1800980242 is 2420890081.

It can be written as a sum of positive squares in 2 ways, for example, as 1185493761 + 615486481 = 34431^2 + 24809^2 .

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 = 1800980198 and 1800980207.

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, 41443 + ... + 72934.

Almost surely, 2^1800980242 is an apocalyptic number.

1800980242 is a deficient number, since it is larger than the sum of its proper divisors (900856874).

1800980242 is a wasteful number, since it uses less digits than its factorization.

1800980242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122252.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 1800980242 is about 42437.9575615981. The cubic root of 1800980242 is about 1216.6611749632.

The spelling of 1800980242 in words is "one billion, eight hundred million, nine hundred eighty thousand, two hundred forty-two".