42204285 has 48 divisors (see below), whose sum is σ = 79320384. Its totient is φ = 20676096.

The previous prime is 42204277. The next prime is 42204373. The reversal of 42204285 is 58240224.

It is a happy number.

It is not a de Polignac number, because 42204285 - 2³ = 42204277 is a prime.

It is a super-2 number, since 2×42204285² = 3562403344722450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32254 + ... + 33536.

It is an arithmetic number, because the mean of its divisors is an integer number (1652508).

Almost surely, 2^42204285 is an apocalyptic number.

42204285 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42204285 is a deficient number, since it is larger than the sum of its proper divisors (37116099).

42204285 is a wasteful number, since it uses less digits than its factorization.

42204285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354 (or 1351 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 42204285 is about 6496.4825097894. The cubic root of 42204285 is about 348.1653247363.

The spelling of 42204285 in words is "forty-two million, two hundred four thousand, two hundred eighty-five".