42195707 has 4 divisors (see below), whose sum is σ = 43093536. Its totient is φ = 41297880.

The previous prime is 42195697. The next prime is 42195709. The reversal of 42195707 is 70759124.

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

It is a cyclic number.

It is not a de Polignac number, because 42195707 - 2⁴ = 42195691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42195709) 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, 448844 + ... + 448937.

It is an arithmetic number, because the mean of its divisors is an integer number (10773384).

Almost surely, 2^42195707 is an apocalyptic number.

42195707 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

42195707 is a deficient number, since it is larger than the sum of its proper divisors (897829).

42195707 is an equidigital number, since it uses as much as digits as its factorization.

42195707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897828.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 42195707 is about 6495.8222728150. The cubic root of 42195707 is about 348.1417349948.

The spelling of 42195707 in words is "forty-two million, one hundred ninety-five thousand, seven hundred seven".