42815634 has 8 divisors (see below), whose sum is σ = 85631280. Its totient is φ = 14271876.

The previous prime is 42815621. The next prime is 42815657. The reversal of 42815634 is 43651824.

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

42815634 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 42815595 and 42815604.

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, 3567964 + ... + 3567975.

It is an arithmetic number, because the mean of its divisors is an integer number (10703910).

Almost surely, 2^42815634 is an apocalyptic number.

42815634 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42815634 is a wasteful number, since it uses less digits than its factorization.

42815634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7135944.

The product of its digits is 23040, while the sum is 33.

The square root of 42815634 is about 6543.3656477382. The cubic root of 42815634 is about 349.8383852488.

The spelling of 42815634 in words is "forty-two million, eight hundred fifteen thousand, six hundred thirty-four".