1810442 has 8 divisors (see below), whose sum is σ = 2721600. Its totient is φ = 903244.

The previous prime is 1810439. The next prime is 1810451. The reversal of 1810442 is 2440181.

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

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, 809 + ... + 2067.

It is an arithmetic number, because the mean of its divisors is an integer number (340200).

2^1810442 is an apocalyptic number.

1810442 is a deficient number, since it is larger than the sum of its proper divisors (911158).

1810442 is a wasteful number, since it uses less digits than its factorization.

1810442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1810442 is about 1345.5266626864. The cubic root of 1810442 is about 121.8788100496.

The spelling of 1810442 in words is "one million, eight hundred ten thousand, four hundred forty-two".