42987826 has 8 divisors (see below), whose sum is σ = 73693440. Its totient is φ = 18423348.

The previous prime is 42987787. The next prime is 42987839. The reversal of 42987826 is 62878924.

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

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, 1535266 + ... + 1535293.

It is an arithmetic number, because the mean of its divisors is an integer number (9211680).

Almost surely, 2^42987826 is an apocalyptic number.

42987826 is a deficient number, since it is larger than the sum of its proper divisors (30705614).

42987826 is a wasteful number, since it uses less digits than its factorization.

42987826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3070568.

The product of its digits is 387072, while the sum is 46.

The square root of 42987826 is about 6556.5101997938. The cubic root of 42987826 is about 350.3067406173.

The spelling of 42987826 in words is "forty-two million, nine hundred eighty-seven thousand, eight hundred twenty-six".