420210436 has 6 divisors (see below), whose sum is σ = 735368270. Its totient is φ = 210105216.

The previous prime is 420210433. The next prime is 420210457. The reversal of 420210436 is 634012024.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 361228036 + 58982400 = 19006^2 + 7680^2 .

It is not an unprimeable number, because it can be changed into a prime (420210431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52526301 + ... + 52526308.

Almost surely, 2^420210436 is an apocalyptic number.

It is an amenable number.

420210436 is a deficient number, since it is larger than the sum of its proper divisors (315157834).

420210436 is a wasteful number, since it uses less digits than its factorization.

420210436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105052613 (or 105052611 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 420210436 is about 20499.0350016775. The cubic root of 420210436 is about 749.0122915173.

The spelling of 420210436 in words is "four hundred twenty million, two hundred ten thousand, four hundred thirty-six".