42507284 has 12 divisors (see below), whose sum is σ = 74434164. Its totient is φ = 21240384.

The previous prime is 42507277. The next prime is 42507299. The reversal of 42507284 is 48270524.

It can be written as a sum of positive squares in 2 ways, for example, as 39187600 + 3319684 = 6260^2 + 1822^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42507284.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8894 + ... + 12810.

It is an arithmetic number, because the mean of its divisors is an integer number (6202847).

Almost surely, 2^42507284 is an apocalyptic number.

It is an amenable number.

42507284 is a deficient number, since it is larger than the sum of its proper divisors (31926880).

42507284 is a wasteful number, since it uses less digits than its factorization.

42507284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6634 (or 6632 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 42507284 is about 6519.7610385658. The cubic root of 42507284 is about 348.9965380346.

The spelling of 42507284 in words is "forty-two million, five hundred seven thousand, two hundred eighty-four".