811490242 has 8 divisors (see below), whose sum is σ = 1226527632. Its totient is φ = 402647700.

The previous prime is 811490237. The next prime is 811490243. The reversal of 811490242 is 242094118.

811490242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×811490242² = 1317032825722437128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (811490243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1548384 + ... + 1548907.

It is an arithmetic number, because the mean of its divisors is an integer number (153315954).

Almost surely, 2^811490242 is an apocalyptic number.

811490242 is a deficient number, since it is larger than the sum of its proper divisors (415037390).

811490242 is a wasteful number, since it uses less digits than its factorization.

811490242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3097424.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 811490242 is about 28486.6677938997. The cubic root of 811490242 is about 932.7410717277.

The spelling of 811490242 in words is "eight hundred eleven million, four hundred ninety thousand, two hundred forty-two".