420786224 has 10 divisors (see below), whose sum is σ = 815273340. Its totient is φ = 210393104.

The previous prime is 420786199. The next prime is 420786229. The reversal of 420786224 is 422687024.

It is a happy number.

It is a super-2 number, since 2×420786224² = 354122092616356352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (420786229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13149554 + ... + 13149585.

It is an arithmetic number, because the mean of its divisors is an integer number (81527334).

Almost surely, 2^420786224 is an apocalyptic number.

It is an amenable number.

420786224 is a deficient number, since it is larger than the sum of its proper divisors (394487116).

420786224 is a wasteful number, since it uses less digits than its factorization.

420786224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26299147 (or 26299141 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 35.

The square root of 420786224 is about 20513.0744648383. The cubic root of 420786224 is about 749.3542435652.

The spelling of 420786224 in words is "four hundred twenty million, seven hundred eighty-six thousand, two hundred twenty-four".