42288506 has 8 divisors (see below), whose sum is σ = 68312244. Its totient is φ = 19517760.

The previous prime is 42288497. The next prime is 42288517. The reversal of 42288506 is 60588224.

It can be written as a sum of positive squares in 2 ways, for example, as 33930625 + 8357881 = 5825^2 + 2891^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 813215 + ... + 813266.

Almost surely, 2^42288506 is an apocalyptic number.

42288506 is a deficient number, since it is larger than the sum of its proper divisors (26023738).

42288506 is a wasteful number, since it uses less digits than its factorization.

42288506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626496.

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 42288506 is about 6502.9613254271. The cubic root of 42288506 is about 348.3967652823.

The spelling of 42288506 in words is "forty-two million, two hundred eighty-eight thousand, five hundred six".