42531248 has 10 divisors (see below), whose sum is σ = 82404324. Its totient is φ = 21265616.

The previous prime is 42531211. The next prime is 42531277. The reversal of 42531248 is 84213524.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 42531248.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1329086 + ... + 1329117.

Almost surely, 2^42531248 is an apocalyptic number.

It is an amenable number.

42531248 is a deficient number, since it is larger than the sum of its proper divisors (39873076).

42531248 is a wasteful number, since it uses less digits than its factorization.

42531248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658211 (or 2658205 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 42531248 is about 6521.5985770362. The cubic root of 42531248 is about 349.0621093994.

The spelling of 42531248 in words is "forty-two million, five hundred thirty-one thousand, two hundred forty-eight".