42974905 has 8 divisors (see below), whose sum is σ = 51653952. Its totient is φ = 34323888.

The previous prime is 42974851. The next prime is 42974923. The reversal of 42974905 is 50947924.

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

It is a cyclic number.

It is not a de Polignac number, because 42974905 - 2⁷ = 42974777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3469 + ... + 9898.

It is an arithmetic number, because the mean of its divisors is an integer number (6456744).

Almost surely, 2^42974905 is an apocalyptic number.

It is an amenable number.

42974905 is a deficient number, since it is larger than the sum of its proper divisors (8679047).

42974905 is a wasteful number, since it uses less digits than its factorization.

42974905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14015.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 42974905 is about 6555.5247692309. The cubic root of 42974905 is about 350.2716394627.

The spelling of 42974905 in words is "forty-two million, nine hundred seventy-four thousand, nine hundred five".