42642782 has 64 divisors (see below), whose sum is σ = 83994624. Its totient is φ = 15776640.

The previous prime is 42642779. The next prime is 42642797. The reversal of 42642782 is 28724624.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 255263 + ... + 255429.

It is an arithmetic number, because the mean of its divisors is an integer number (1312416).

Almost surely, 2^42642782 is an apocalyptic number.

42642782 is a deficient number, since it is larger than the sum of its proper divisors (41351842).

42642782 is a wasteful number, since it uses less digits than its factorization.

42642782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273.

The product of its digits is 43008, while the sum is 35.

The square root of 42642782 is about 6530.1441025448. The cubic root of 42642782 is about 349.3669700419.

The spelling of 42642782 in words is "forty-two million, six hundred forty-two thousand, seven hundred eighty-two".