428182646406 has 32 divisors (see below), whose sum is σ = 870504403200. Its totient is φ = 140371570080.

The previous prime is 428182646401. The next prime is 428182646413. The reversal of 428182646406 is 604646281824.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428182646401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3347985 + ... + 3473523.

It is an arithmetic number, because the mean of its divisors is an integer number (27203262600).

Almost surely, 2^428182646406 is an apocalyptic number.

428182646406 is an abundant number, since it is smaller than the sum of its proper divisors (442321756794).

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

428182646406 is a wasteful number, since it uses less digits than its factorization.

428182646406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134924.

The product of its (nonzero) digits is 3538944, while the sum is 51.

The spelling of 428182646406 in words is "four hundred twenty-eight billion, one hundred eighty-two million, six hundred forty-six thousand, four hundred six".