42290884782 has 32 divisors (see below), whose sum is σ = 96519741600. Its totient is φ = 13715961984.

The previous prime is 42290884723. The next prime is 42290884789. The reversal of 42290884782 is 28748809224.

42290884782 is a `hidden beast` number, since 4 + 2 + 2 + 90 + 88 + 478 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42290884789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10581307 + ... + 10585302.

It is an arithmetic number, because the mean of its divisors is an integer number (3016241925).

Almost surely, 2^42290884782 is an apocalyptic number.

42290884782 is an abundant number, since it is smaller than the sum of its proper divisors (54228856818).

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

42290884782 is a wasteful number, since it uses less digits than its factorization.

42290884782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21166657 (or 21166651 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 54.

The spelling of 42290884782 in words is "forty-two billion, two hundred ninety million, eight hundred eighty-four thousand, seven hundred eighty-two".