42811834 has 8 divisors (see below), whose sum is σ = 69157620. Its totient is φ = 19759296.

The previous prime is 42811829. The next prime is 42811841. The reversal of 42811834 is 43811824.

It can be written as a sum of positive squares in 2 ways, for example, as 34774609 + 8037225 = 5897^2 + 2835^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 42811796 and 42811805.

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, 823279 + ... + 823330.

Almost surely, 2^42811834 is an apocalyptic number.

42811834 is a deficient number, since it is larger than the sum of its proper divisors (26345786).

42811834 is a wasteful number, since it uses less digits than its factorization.

42811834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646624.

The product of its digits is 6144, while the sum is 31.

The square root of 42811834 is about 6543.0752708493. The cubic root of 42811834 is about 349.8280352507.

The spelling of 42811834 in words is "forty-two million, eight hundred eleven thousand, eight hundred thirty-four".