420620435 has 16 divisors (see below), whose sum is σ = 539542080. Its totient is φ = 314012160.

The previous prime is 420620429. The next prime is 420620441. The reversal of 420620435 is 534026024.

It is an interprime number because it is at equal distance from previous prime (420620429) and next prime (420620441).

It is not a de Polignac number, because 420620435 - 2⁴ = 420620419 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39890 + ... + 49319.

It is an arithmetic number, because the mean of its divisors is an integer number (33721380).

Almost surely, 2^420620435 is an apocalyptic number.

420620435 is a deficient number, since it is larger than the sum of its proper divisors (118921645).

420620435 is a wasteful number, since it uses less digits than its factorization.

420620435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89278.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 420620435 is about 20509.0330098715. The cubic root of 420620435 is about 749.2558159050.

Adding to 420620435 its reverse (534026024), we get a palindrome (954646459).

The spelling of 420620435 in words is "four hundred twenty million, six hundred twenty thousand, four hundred thirty-five".