42022791 has 6 divisors (see below), whose sum is σ = 60699600. Its totient is φ = 28015188.

The previous prime is 42022727. The next prime is 42022801. The reversal of 42022791 is 19722024.

It is not a de Polignac number, because 42022791 - 2⁶ = 42022727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42022291) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2334591 + ... + 2334608.

It is an arithmetic number, because the mean of its divisors is an integer number (10116600).

Almost surely, 2^42022791 is an apocalyptic number.

42022791 is a deficient number, since it is larger than the sum of its proper divisors (18676809).

42022791 is a wasteful number, since it uses less digits than its factorization.

42022791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4669205 (or 4669202 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 42022791 is about 6482.4988237562. The cubic root of 42022791 is about 347.6655278202.

The spelling of 42022791 in words is "forty-two million, twenty-two thousand, seven hundred ninety-one".