42283784 has 8 divisors (see below), whose sum is σ = 79282110. Its totient is φ = 21141888.

The previous prime is 42283757. The next prime is 42283799. The reversal of 42283784 is 48738224.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 31248100 + 11035684 = 5590^2 + 3322^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2642729 + ... + 2642744.

Almost surely, 2^42283784 is an apocalyptic number.

It is an amenable number.

42283784 is a deficient number, since it is larger than the sum of its proper divisors (36998326).

42283784 is a wasteful number, since it uses less digits than its factorization.

42283784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5285479 (or 5285475 counting only the distinct ones).

The product of its digits is 86016, while the sum is 38.

The square root of 42283784 is about 6502.5982499306. The cubic root of 42283784 is about 348.3837972924.

The spelling of 42283784 in words is "forty-two million, two hundred eighty-three thousand, seven hundred eighty-four".