420120600 has 48 divisors (see below), whose sum is σ = 1302375720. Its totient is φ = 112032000.

The previous prime is 420120529. The next prime is 420120611. The reversal of 420120600 is 6021024.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 420120600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 349501 + ... + 350700.

Almost surely, 2^420120600 is an apocalyptic number.

420120600 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420120600 is an abundant number, since it is smaller than the sum of its proper divisors (882255120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420120600 is a wasteful number, since it uses less digits than its factorization.

420120600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700220 (or 700211 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 420120600 is about 20496.8436594516. The cubic root of 420120600 is about 748.9589110694.

Adding to 420120600 its reverse (6021024), we get a palindrome (426141624).

The spelling of 420120600 in words is "four hundred twenty million, one hundred twenty thousand, six hundred".