42084284 has 18 divisors (see below), whose sum is σ = 80952312. Its totient is φ = 19129000.

The previous prime is 42084283. The next prime is 42084293. The reversal of 42084284 is 48248024.

It is a self number, because there is not a number n which added to its sum of digits gives 42084284.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42084283) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42992 + ... + 43959.

Almost surely, 2^42084284 is an apocalyptic number.

42084284 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42084284 is a deficient number, since it is larger than the sum of its proper divisors (38868028).

42084284 is a wasteful number, since it uses less digits than its factorization.

42084284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86977 (or 86964 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

The square root of 42084284 is about 6487.2400911327. The cubic root of 42084284 is about 347.8350277204.

The spelling of 42084284 in words is "forty-two million, eighty-four thousand, two hundred eighty-four".