42250642 has 24 divisors (see below), whose sum is σ = 77606640. Its totient is φ = 17153640.

The previous prime is 42250631. The next prime is 42250673. The reversal of 42250642 is 24605224.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9484 + ... + 13207.

It is an arithmetic number, because the mean of its divisors is an integer number (3233610).

Almost surely, 2^42250642 is an apocalyptic number.

42250642 is a deficient number, since it is larger than the sum of its proper divisors (35355998).

42250642 is a wasteful number, since it uses less digits than its factorization.

42250642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22726 (or 22719 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 42250642 is about 6500.0493844278. The cubic root of 42250642 is about 348.2927525100.

Adding to 42250642 its reverse (24605224), we get a palindrome (66855866).

The spelling of 42250642 in words is "forty-two million, two hundred fifty thousand, six hundred forty-two".