420424522 has 16 divisors (see below), whose sum is σ = 723393792. Its totient is φ = 179515440.

The previous prime is 420424469. The next prime is 420424559. The reversal of 420424522 is 225424024.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51613 + ... + 59200.

It is an arithmetic number, because the mean of its divisors is an integer number (45212112).

Almost surely, 2^420424522 is an apocalyptic number.

420424522 is a deficient number, since it is larger than the sum of its proper divisors (302969270).

420424522 is a wasteful number, since it uses less digits than its factorization.

420424522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111093.

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 420424522 is about 20504.2561923129. The cubic root of 420424522 is about 749.1394705111.

Adding to 420424522 its reverse (225424024), we get a palindrome (645848546).

It can be divided in two parts, 42042 and 4522, that added together give a palindrome (46564).

The spelling of 420424522 in words is "four hundred twenty million, four hundred twenty-four thousand, five hundred twenty-two".