42065622 has 16 divisors (see below), whose sum is σ = 93479280. Its totient is φ = 14021856.

The previous prime is 42065603. The next prime is 42065629. The reversal of 42065622 is 22656024.

42065622 is a `hidden beast` number, since 4 + 2 + 0 + 656 + 2 + 2 = 666.

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 (42065629) 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, 389443 + ... + 389550.

It is an arithmetic number, because the mean of its divisors is an integer number (5842455).

Almost surely, 2^42065622 is an apocalyptic number.

42065622 is an abundant number, since it is smaller than the sum of its proper divisors (51413658).

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

42065622 is a wasteful number, since it uses less digits than its factorization.

42065622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779004 (or 778998 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 42065622 is about 6485.8015695826. The cubic root of 42065622 is about 347.7836050639.

The spelling of 42065622 in words is "forty-two million, sixty-five thousand, six hundred twenty-two".