42249536 has 28 divisors (see below), whose sum is σ = 95816928. Its totient is φ = 18106752.

The previous prime is 42249517. The next prime is 42249547. The reversal of 42249536 is 63594224.

It is a tau number, because it is divible by the number of its divisors (28).

It is a junction number, because it is equal to n+sod(n) for n = 42249496 and 42249505.

It is a congruent number.

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, 46706 + ... + 47601.

Almost surely, 2^42249536 is an apocalyptic number.

It is an amenable number.

42249536 is an abundant number, since it is smaller than the sum of its proper divisors (53567392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42249536 is an equidigital number, since it uses as much as digits as its factorization.

42249536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94326 (or 94316 counting only the distinct ones).

The product of its digits is 51840, while the sum is 35.

The square root of 42249536 is about 6499.9643075943. The cubic root of 42249536 is about 348.2897133834.

The spelling of 42249536 in words is "forty-two million, two hundred forty-nine thousand, five hundred thirty-six".