809837242 has 8 divisors (see below), whose sum is σ = 1253941632. Its totient is φ = 391856700.

The previous prime is 809837221. The next prime is 809837251. The reversal of 809837242 is 242738908.

It is a happy number.

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, 6530884 + ... + 6531007.

It is an arithmetic number, because the mean of its divisors is an integer number (156742704).

Almost surely, 2^809837242 is an apocalyptic number.

809837242 is a deficient number, since it is larger than the sum of its proper divisors (444104390).

809837242 is a wasteful number, since it uses less digits than its factorization.

809837242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13061924.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 809837242 is about 28457.6394312670. The cubic root of 809837242 is about 932.1073121781.

The spelling of 809837242 in words is "eight hundred nine million, eight hundred thirty-seven thousand, two hundred forty-two".