42006292 has 12 divisors (see below), whose sum is σ = 73980340. Its totient is φ = 20869056.

The previous prime is 42006277. The next prime is 42006323. The reversal of 42006292 is 29260024.

It can be written as a sum of positive squares in 2 ways, for example, as 15007876 + 26998416 = 3874^2 + 5196^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32817 + ... + 34072.

Almost surely, 2^42006292 is an apocalyptic number.

It is an amenable number.

42006292 is a deficient number, since it is larger than the sum of its proper divisors (31974048).

42006292 is a wasteful number, since it uses less digits than its factorization.

42006292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67050 (or 67048 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 42006292 is about 6481.2261185674. The cubic root of 42006292 is about 347.6200216851.

The spelling of 42006292 in words is "forty-two million, six thousand, two hundred ninety-two".