4217420 has 24 divisors (see below), whose sum is σ = 8895264. Its totient is φ = 1679616.

The previous prime is 4217417. The next prime is 4217431. The reversal of 4217420 is 247124.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 4217392 and 4217401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8417 + ... + 8903.

It is an arithmetic number, because the mean of its divisors is an integer number (370636).

Almost surely, 2^4217420 is an apocalyptic number.

It is an amenable number.

4217420 is an abundant number, since it is smaller than the sum of its proper divisors (4677844).

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

4217420 is a wasteful number, since it uses less digits than its factorization.

4217420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929 (or 927 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 4217420 is about 2053.6358002333. The cubic root of 4217420 is about 161.5656198306.

The spelling of 4217420 in words is "four million, two hundred seventeen thousand, four hundred twenty".