420194429228 has 24 divisors (see below), whose sum is σ = 840683169312. Its totient is φ = 180020260224.

The previous prime is 420194429219. The next prime is 420194429267. The reversal of 420194429228 is 822924491024.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2546351 + ... + 2706342.

It is an arithmetic number, because the mean of its divisors is an integer number (35028465388).

Almost surely, 2^420194429228 is an apocalyptic number.

It is an amenable number.

420194429228 is an abundant number, since it is smaller than the sum of its proper divisors (420488740084).

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

420194429228 is a wasteful number, since it uses less digits than its factorization.

420194429228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5255561 (or 5255559 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 420194429228 in words is "four hundred twenty billion, one hundred ninety-four million, four hundred twenty-nine thousand, two hundred twenty-eight".