42310782 has 16 divisors (see below), whose sum is σ = 94024080. Its totient is φ = 14103576.

The previous prime is 42310781. The next prime is 42310789. The reversal of 42310782 is 28701324.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42310781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391713 + ... + 391820.

It is an arithmetic number, because the mean of its divisors is an integer number (5876505).

Almost surely, 2^42310782 is an apocalyptic number.

42310782 is an abundant number, since it is smaller than the sum of its proper divisors (51713298).

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

42310782 is a wasteful number, since it uses less digits than its factorization.

42310782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783544 (or 783538 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 42310782 is about 6504.6738580808. The cubic root of 42310782 is about 348.4579286634.

The spelling of 42310782 in words is "forty-two million, three hundred ten thousand, seven hundred eighty-two".