420822434 has 8 divisors (see below), whose sum is σ = 631356240. Its totient is φ = 210370356.

The previous prime is 420822407. The next prime is 420822439. The reversal of 420822434 is 434228024.

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 = 420822397 and 420822406.

It is not an unprimeable number, because it can be changed into a prime (420822439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5324 + ... + 29495.

It is an arithmetic number, because the mean of its divisors is an integer number (78919530).

Almost surely, 2^420822434 is an apocalyptic number.

420822434 is a deficient number, since it is larger than the sum of its proper divisors (210533806).

420822434 is a wasteful number, since it uses less digits than its factorization.

420822434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40864.

The product of its (nonzero) digits is 12288, while the sum is 29.

The square root of 420822434 is about 20513.9570536745. The cubic root of 420822434 is about 749.3757377248.

The spelling of 420822434 in words is "four hundred twenty million, eight hundred twenty-two thousand, four hundred thirty-four".