42945682 has 8 divisors (see below), whose sum is σ = 69373836. Its totient is φ = 19821072.

The previous prime is 42945677. The next prime is 42945697. The reversal of 42945682 is 28654924.

It can be written as a sum of positive squares in 2 ways, for example, as 30702681 + 12243001 = 5541^2 + 3499^2 .

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, 825853 + ... + 825904.

Almost surely, 2^42945682 is an apocalyptic number.

42945682 is a deficient number, since it is larger than the sum of its proper divisors (26428154).

42945682 is a wasteful number, since it uses less digits than its factorization.

42945682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651772.

The product of its digits is 138240, while the sum is 40.

The square root of 42945682 is about 6553.2955068423. The cubic root of 42945682 is about 350.1922263792.

The spelling of 42945682 in words is "forty-two million, nine hundred forty-five thousand, six hundred eighty-two".