42205797 has 12 divisors (see below), whose sum is σ = 61020960. Its totient is φ = 28110888.

The previous prime is 42205777. The next prime is 42205799. The reversal of 42205797 is 79750224.

It is not a de Polignac number, because 42205797 - 2⁶ = 42205733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42205799) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15354 + ... + 17892.

It is an arithmetic number, because the mean of its divisors is an integer number (5085080).

Almost surely, 2^42205797 is an apocalyptic number.

It is an amenable number.

42205797 is a deficient number, since it is larger than the sum of its proper divisors (18815163).

42205797 is a wasteful number, since it uses less digits than its factorization.

42205797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4392 (or 4389 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 42205797 is about 6496.5988794138. The cubic root of 42205797 is about 348.1694824475.

The spelling of 42205797 in words is "forty-two million, two hundred five thousand, seven hundred ninety-seven".