680001420 has 72 divisors (see below), whose sum is σ = 2214871344. Its totient is φ = 155428224.

The previous prime is 680001403. The next prime is 680001449. The reversal of 680001420 is 24100086.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a zygodrome in base 14.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 112707 + ... + 118586.

It is an arithmetic number, because the mean of its divisors is an integer number (30762102).

Almost surely, 2^680001420 is an apocalyptic number.

680001420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

680001420 is an abundant number, since it is smaller than the sum of its proper divisors (1534869924).

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

680001420 is a wasteful number, since it uses less digits than its factorization.

680001420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231319 (or 231310 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 680001420 is about 26076.8368480535. The cubic root of 680001420 is about 879.3665465389.

The spelling of 680001420 in words is "six hundred eighty million, one thousand, four hundred twenty".