810302942 has 4 divisors (see below), whose sum is σ = 1215454416. Its totient is φ = 405151470.

The previous prime is 810302939. The next prime is 810302947. The reversal of 810302942 is 249203018.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810302947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202575734 + ... + 202575737.

It is an arithmetic number, because the mean of its divisors is an integer number (303863604).

Almost surely, 2^810302942 is an apocalyptic number.

810302942 is a deficient number, since it is larger than the sum of its proper divisors (405151474).

810302942 is a wasteful number, since it uses less digits than its factorization.

810302942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405151473.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 810302942 is about 28465.8205924228. The cubic root of 810302942 is about 932.2859485643.

The spelling of 810302942 in words is "eight hundred ten million, three hundred two thousand, nine hundred forty-two".