42250732 has 12 divisors (see below), whose sum is σ = 73994200. Its totient is φ = 21109536.

The previous prime is 42250727. The next prime is 42250753. The reversal of 42250732 is 23705224.

It is a junction number, because it is equal to n+sod(n) for n = 42250697 and 42250706.

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, 3688 + ... + 9904.

Almost surely, 2^42250732 is an apocalyptic number.

It is an amenable number.

42250732 is a deficient number, since it is larger than the sum of its proper divisors (31743468).

42250732 is a wasteful number, since it uses less digits than its factorization.

42250732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7920 (or 7918 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 42250732 is about 6500.0563074484. The cubic root of 42250732 is about 348.2929998145.

Adding to 42250732 its reverse (23705224), we get a palindrome (65955956).

The spelling of 42250732 in words is "forty-two million, two hundred fifty thousand, seven hundred thirty-two".