42790107 has 4 divisors (see below), whose sum is σ = 57053480. Its totient is φ = 28526736.

The previous prime is 42790079. The next prime is 42790123. The reversal of 42790107 is 70109724.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42790107 - 2¹² = 42786011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42790127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7131682 + ... + 7131687.

It is an arithmetic number, because the mean of its divisors is an integer number (14263370).

Almost surely, 2^42790107 is an apocalyptic number.

42790107 is a deficient number, since it is larger than the sum of its proper divisors (14263373).

42790107 is a wasteful number, since it uses less digits than its factorization.

42790107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14263372.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 42790107 is about 6541.4147552345. The cubic root of 42790107 is about 349.7688460097.

The spelling of 42790107 in words is "forty-two million, seven hundred ninety thousand, one hundred seven".