42247472 has 20 divisors (see below), whose sum is σ = 82085520. Its totient is φ = 21064128.

The previous prime is 42247463. The next prime is 42247487. The reversal of 42247472 is 27474224.

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, 2429 + ... + 9507.

It is an arithmetic number, because the mean of its divisors is an integer number (4104276).

Almost surely, 2^42247472 is an apocalyptic number.

It is an amenable number.

42247472 is a deficient number, since it is larger than the sum of its proper divisors (39838048).

42247472 is a wasteful number, since it uses less digits than its factorization.

42247472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7460 (or 7454 counting only the distinct ones).

The product of its digits is 25088, while the sum is 32.

The square root of 42247472 is about 6499.8055355526. The cubic root of 42247472 is about 348.2840416708.

The spelling of 42247472 in words is "forty-two million, two hundred forty-seven thousand, four hundred seventy-two".