420770630 has 32 divisors (see below), whose sum is σ = 866937600. Its totient is φ = 144038880.

The previous prime is 420770593. The next prime is 420770633. The reversal of 420770630 is 36077024.

It is a junction number, because it is equal to n+sod(n) for n = 420770593 and 420770602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420770633) 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 in 15 ways as a sum of consecutive naturals, for example, 44021 + ... + 52719.

It is an arithmetic number, because the mean of its divisors is an integer number (27091800).

Almost surely, 2^420770630 is an apocalyptic number.

420770630 is an abundant number, since it is smaller than the sum of its proper divisors (446166970).

420770630 is a wasteful number, since it uses less digits than its factorization.

420770630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9404.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 420770630 is about 20512.6943622724. The cubic root of 420770630 is about 749.3449866284.

The spelling of 420770630 in words is "four hundred twenty million, seven hundred seventy thousand, six hundred thirty".