42704831 has 8 divisors (see below), whose sum is σ = 46322640. Its totient is φ = 39134592.

The previous prime is 42704801. The next prime is 42704843. The reversal of 42704831 is 13840724.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42704831 is a prime.

It is a super-2 number, since 2×42704831² = 3647405181477122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42704794 and 42704803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42704801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10010 + ... + 13623.

It is an arithmetic number, because the mean of its divisors is an integer number (5790330).

Almost surely, 2^42704831 is an apocalyptic number.

42704831 is a deficient number, since it is larger than the sum of its proper divisors (3617809).

42704831 is a wasteful number, since it uses less digits than its factorization.

42704831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23785.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 42704831 is about 6534.8933426644. The cubic root of 42704831 is about 349.5363411460.

The spelling of 42704831 in words is "forty-two million, seven hundred four thousand, eight hundred thirty-one".