42644034 has 24 divisors (see below), whose sum is σ = 95377152. Its totient is φ = 13755960.

The previous prime is 42644023. The next prime is 42644039. The reversal of 42644034 is 43044624.

It is a junction number, because it is equal to n+sod(n) for n = 42643989 and 42644007.

It is not an unprimeable number, because it can be changed into a prime (42644039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37654 + ... + 38769.

It is an arithmetic number, because the mean of its divisors is an integer number (3974048).

Almost surely, 2^42644034 is an apocalyptic number.

42644034 is an abundant number, since it is smaller than the sum of its proper divisors (52733118).

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

42644034 is a wasteful number, since it uses less digits than its factorization.

42644034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76462 (or 76459 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 42644034 is about 6530.2399649630. The cubic root of 42644034 is about 349.3703891681.

Adding to 42644034 its reverse (43044624), we get a palindrome (85688658).

The spelling of 42644034 in words is "forty-two million, six hundred forty-four thousand, thirty-four".