42447292 has 24 divisors (see below), whose sum is σ = 78592640. Its totient is φ = 20003760.

The previous prime is 42447281. The next prime is 42447323. The reversal of 42447292 is 29274424.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14713 + ... + 17359.

Almost surely, 2^42447292 is an apocalyptic number.

It is an amenable number.

42447292 is a deficient number, since it is larger than the sum of its proper divisors (36145348).

42447292 is a wasteful number, since it uses less digits than its factorization.

42447292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2881 (or 2879 counting only the distinct ones).

The product of its digits is 32256, while the sum is 34.

The square root of 42447292 is about 6515.1586319905. The cubic root of 42447292 is about 348.8322771066.

The spelling of 42447292 in words is "forty-two million, four hundred forty-seven thousand, two hundred ninety-two".