420346256 has 30 divisors (see below), whose sum is σ = 895194006. Its totient is φ = 191065600.

The previous prime is 420346249. The next prime is 420346273. The reversal of 420346256 is 652643024.

It can be written as a sum of positive squares in only one way, i.e., 309760000 + 110586256 = 17600^2 + 10516^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 106625 + ... + 110496.

Almost surely, 2^420346256 is an apocalyptic number.

It is an amenable number.

420346256 is an abundant number, since it is smaller than the sum of its proper divisors (474847750).

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

420346256 is a wasteful number, since it uses less digits than its factorization.

420346256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217151 (or 217134 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 420346256 is about 20502.3475729000. The cubic root of 420346256 is about 749.0929811609.

The spelling of 420346256 in words is "four hundred twenty million, three hundred forty-six thousand, two hundred fifty-six".