42252394 has 8 divisors (see below), whose sum is σ = 64090980. Its totient is φ = 20888736.

The previous prime is 42252341. The next prime is 42252451. The reversal of 42252394 is 49325224.

It can be written as a sum of positive squares in 2 ways, for example, as 30658369 + 11594025 = 5537^2 + 3405^2 .

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

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, 118509 + ... + 118864.

Almost surely, 2^42252394 is an apocalyptic number.

42252394 is a deficient number, since it is larger than the sum of its proper divisors (21838586).

42252394 is a wasteful number, since it uses less digits than its factorization.

42252394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237464.

The product of its digits is 17280, while the sum is 31.

The square root of 42252394 is about 6500.1841512376. The cubic root of 42252394 is about 348.2975666417.

The spelling of 42252394 in words is "forty-two million, two hundred fifty-two thousand, three hundred ninety-four".