42813442 has 16 divisors (see below), whose sum is σ = 76586112. Its totient is φ = 17550720.

The previous prime is 42813431. The next prime is 42813443. The reversal of 42813442 is 24431824.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 42813442.

It is not an unprimeable number, because it can be changed into a prime (42813443) 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, 66159 + ... + 66802.

It is an arithmetic number, because the mean of its divisors is an integer number (4786632).

Almost surely, 2^42813442 is an apocalyptic number.

42813442 is a deficient number, since it is larger than the sum of its proper divisors (33772670).

42813442 is a wasteful number, since it uses less digits than its factorization.

42813442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132993.

The product of its digits is 6144, while the sum is 28.

The square root of 42813442 is about 6543.1981476951. The cubic root of 42813442 is about 349.8324150088.

The spelling of 42813442 in words is "forty-two million, eight hundred thirteen thousand, four hundred forty-two".