42027790 has 32 divisors (see below), whose sum is σ = 88228800. Its totient is φ = 14408352.

The previous prime is 42027767. The next prime is 42027803. The reversal of 42027790 is 9772024.

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 15 ways as a sum of consecutive naturals, for example, 2697 + ... + 9556.

It is an arithmetic number, because the mean of its divisors is an integer number (2757150).

Almost surely, 2^42027790 is an apocalyptic number.

42027790 is an abundant number, since it is smaller than the sum of its proper divisors (46201010).

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

42027790 is a wasteful number, since it uses less digits than its factorization.

42027790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12281 (or 12267 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 42027790 is about 6482.8843889121. The cubic root of 42027790 is about 347.6793132846.

The spelling of 42027790 in words is "forty-two million, twenty-seven thousand, seven hundred ninety".