420101630 has 32 divisors (see below), whose sum is σ = 819782208. Its totient is φ = 154080000.

The previous prime is 420101611. The next prime is 420101639. The reversal of 420101630 is 36101024.

It is a junction number, because it is equal to n+sod(n) for n = 420101599 and 420101608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420101639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8930 + ... + 30330.

It is an arithmetic number, because the mean of its divisors is an integer number (25618194).

Almost surely, 2^420101630 is an apocalyptic number.

420101630 is a deficient number, since it is larger than the sum of its proper divisors (399680578).

420101630 is a wasteful number, since it uses less digits than its factorization.

420101630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21572.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 420101630 is about 20496.3809000516. The cubic root of 420101630 is about 748.9476381441.

Adding to 420101630 its reverse (36101024), we get a palindrome (456202654).

The spelling of 420101630 in words is "four hundred twenty million, one hundred one thousand, six hundred thirty".