810042752 has 16 divisors (see below), whose sum is σ = 1613757300. Its totient is φ = 405021312.

The previous prime is 810042749. The next prime is 810042757. The reversal of 810042752 is 257240018.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810042757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3164102 + ... + 3164357.

Almost surely, 2^810042752 is an apocalyptic number.

It is an amenable number.

810042752 is a deficient number, since it is larger than the sum of its proper divisors (803714548).

810042752 is an equidigital number, since it uses as much as digits as its factorization.

810042752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6328473 (or 6328461 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 810042752 is about 28461.2500076859. The cubic root of 810042752 is about 932.1861515475.

The spelling of 810042752 in words is "eight hundred ten million, forty-two thousand, seven hundred fifty-two".