420213574 has 32 divisors (see below), whose sum is σ = 704505600. Its totient is φ = 186357600.

The previous prime is 420213569. The next prime is 420213581. The reversal of 420213574 is 475312024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231129 + ... + 232939.

It is an arithmetic number, because the mean of its divisors is an integer number (22015800).

Almost surely, 2^420213574 is an apocalyptic number.

420213574 is a deficient number, since it is larger than the sum of its proper divisors (284292026).

420213574 is a wasteful number, since it uses less digits than its factorization.

420213574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2076.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 420213574 is about 20499.1115417230. Note that the first 3 decimals coincide. The cubic root of 420213574 is about 749.0141559758.

Adding to 420213574 its reverse (475312024), we get a palindrome (895525598).

The spelling of 420213574 in words is "four hundred twenty million, two hundred thirteen thousand, five hundred seventy-four".