42270424 has 16 divisors (see below), whose sum is σ = 90579600. Its totient is φ = 18115872.

The previous prime is 42270413. The next prime is 42270427. The reversal of 42270424 is 42407224.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42270427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377359 + ... + 377470.

It is an arithmetic number, because the mean of its divisors is an integer number (5661225).

Almost surely, 2^42270424 is an apocalyptic number.

It is an amenable number.

42270424 is an abundant number, since it is smaller than the sum of its proper divisors (48309176).

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

42270424 is a wasteful number, since it uses less digits than its factorization.

42270424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754842 (or 754838 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 25.

The square root of 42270424 is about 6501.5708871011. The cubic root of 42270424 is about 348.3471016029.

Adding to 42270424 its reverse (42407224), we get a palindrome (84677648).

The spelling of 42270424 in words is "forty-two million, two hundred seventy thousand, four hundred twenty-four".