42284869 has 4 divisors (see below), whose sum is σ = 46128960. Its totient is φ = 38440780.

The previous prime is 42284863. The next prime is 42284897. The reversal of 42284869 is 96848224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42284869 is a prime.

It is a super-2 number, since 2×42284869² = 3576020292694322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42284863) 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, 1922029 + ... + 1922050.

It is an arithmetic number, because the mean of its divisors is an integer number (11532240).

Almost surely, 2^42284869 is an apocalyptic number.

It is an amenable number.

42284869 is a deficient number, since it is larger than the sum of its proper divisors (3844091).

42284869 is a wasteful number, since it uses less digits than its factorization.

42284869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3844090.

The product of its digits is 221184, while the sum is 43.

The square root of 42284869 is about 6502.6816775850. The cubic root of 42284869 is about 348.3867771044.

The spelling of 42284869 in words is "forty-two million, two hundred eighty-four thousand, eight hundred sixty-nine".