42520414 has 4 divisors (see below), whose sum is σ = 63780624. Its totient is φ = 21260206.

The previous prime is 42520397. The next prime is 42520433. The reversal of 42520414 is 41402524.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10630102 + ... + 10630105.

It is an arithmetic number, because the mean of its divisors is an integer number (15945156).

Almost surely, 2^42520414 is an apocalyptic number.

42520414 is a deficient number, since it is larger than the sum of its proper divisors (21260210).

42520414 is a wasteful number, since it uses less digits than its factorization.

42520414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21260209.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 42520414 is about 6520.7678995652. The cubic root of 42520414 is about 349.0324679771.

Adding to 42520414 its reverse (41402524), we get a palindrome (83922938).

The spelling of 42520414 in words is "forty-two million, five hundred twenty thousand, four hundred fourteen".