42620344 has 32 divisors (see below), whose sum is σ = 90594000. Its totient is φ = 18634752.

The previous prime is 42620341. The next prime is 42620351. The reversal of 42620344 is 44302624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42620341) 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, 8809 + ... + 12760.

Almost surely, 2^42620344 is an apocalyptic number.

It is an amenable number.

42620344 is an abundant number, since it is smaller than the sum of its proper divisors (47973656).

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

42620344 is a wasteful number, since it uses less digits than its factorization.

42620344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21607 (or 21603 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 42620344 is about 6528.4258439535. The cubic root of 42620344 is about 349.3056820501.

Adding to 42620344 its reverse (44302624), we get a palindrome (86922968).

The spelling of 42620344 in words is "forty-two million, six hundred twenty thousand, three hundred forty-four".