428106572320 has 48 divisors (see below), whose sum is σ = 1155887748288. Its totient is φ = 146779395840.

The previous prime is 428106572297. The next prime is 428106572329. The reversal of 428106572320 is 23275601824.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (428106572329) by changing a digit.

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, 191117886 + ... + 191120125.

It is an arithmetic number, because the mean of its divisors is an integer number (24080994756).

Almost surely, 2^428106572320 is an apocalyptic number.

428106572320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

428106572320 is an abundant number, since it is smaller than the sum of its proper divisors (727781175968).

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

428106572320 is a wasteful number, since it uses less digits than its factorization.

428106572320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382238033 (or 382238025 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 428106572320 in words is "four hundred twenty-eight billion, one hundred six million, five hundred seventy-two thousand, three hundred twenty".