420220476 has 36 divisors (see below), whose sum is σ = 1143934792. Its totient is φ = 129298464.

The previous prime is 420220441. The next prime is 420220477. The reversal of 420220476 is 674022024.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420220477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 448486 + ... + 449421.

Almost surely, 2^420220476 is an apocalyptic number.

It is an amenable number.

420220476 is an abundant number, since it is smaller than the sum of its proper divisors (723714316).

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

420220476 is a wasteful number, since it uses less digits than its factorization.

420220476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897930 (or 897925 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 420220476 is about 20499.2798897913. The cubic root of 420220476 is about 749.0182568011.

The spelling of 420220476 in words is "four hundred twenty million, two hundred twenty thousand, four hundred seventy-six".