420704122 has 8 divisors (see below), whose sum is σ = 640475136. Its totient is φ = 207212412.

The previous prime is 420704107. The next prime is 420704143. The reversal of 420704122 is 221407024.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 420704093 and 420704102.

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 3 ways as a sum of consecutive naturals, for example, 1569658 + ... + 1569925.

It is an arithmetic number, because the mean of its divisors is an integer number (80059392).

Almost surely, 2^420704122 is an apocalyptic number.

420704122 is a deficient number, since it is larger than the sum of its proper divisors (219771014).

420704122 is a wasteful number, since it uses less digits than its factorization.

420704122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3139652.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 420704122 is about 20511.0731557371. The cubic root of 420704122 is about 749.3055034683.

The spelling of 420704122 in words is "four hundred twenty million, seven hundred four thousand, one hundred twenty-two".