42648685 has 8 divisors (see below), whose sum is σ = 51436800. Its totient is φ = 33946704.

The previous prime is 42648677. The next prime is 42648689. The reversal of 42648685 is 58684624.

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 42648685 - 2³ = 42648677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42648689) 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, 20437 + ... + 22426.

It is an arithmetic number, because the mean of its divisors is an integer number (6429600).

Almost surely, 2^42648685 is an apocalyptic number.

It is an amenable number.

42648685 is a deficient number, since it is larger than the sum of its proper divisors (8788115).

42648685 is a wasteful number, since it uses less digits than its factorization.

42648685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43067.

The product of its digits is 368640, while the sum is 43.

The square root of 42648685 is about 6530.5960677414. The cubic root of 42648685 is about 349.3830901446.

The spelling of 42648685 in words is "forty-two million, six hundred forty-eight thousand, six hundred eighty-five".