428444028202 has 16 divisors (see below), whose sum is σ = 645330958272. Its totient is φ = 213334133760.

The previous prime is 428444028197. The next prime is 428444028239. The reversal of 428444028202 is 202820444824.

It is a happy number.

It is a super-3 number, since 3×428444028202³ (a number of 36 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1953427 + ... + 2161657.

It is an arithmetic number, because the mean of its divisors is an integer number (40333184892).

Almost surely, 2^428444028202 is an apocalyptic number.

428444028202 is a deficient number, since it is larger than the sum of its proper divisors (216886930070).

428444028202 is a wasteful number, since it uses less digits than its factorization.

428444028202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212493.

The product of its (nonzero) digits is 262144, while the sum is 40.

The spelling of 428444028202 in words is "four hundred twenty-eight billion, four hundred forty-four million, twenty-eight thousand, two hundred two".