428106013890 has 32 divisors (see below), whose sum is σ = 1027986106176. Its totient is φ = 114102528960.

The previous prime is 428106013877. The next prime is 428106013891. The reversal of 428106013890 is 98310601824.

428106013890 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×428106013890³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (428106013891) 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, 3633216 + ... + 3749195.

It is an arithmetic number, because the mean of its divisors is an integer number (32124565818).

Almost surely, 2^428106013890 is an apocalyptic number.

428106013890 is an abundant number, since it is smaller than the sum of its proper divisors (599880092286).

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

428106013890 is a wasteful number, since it uses less digits than its factorization.

428106013890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7384354.

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 428106013890 in words is "four hundred twenty-eight billion, one hundred six million, thirteen thousand, eight hundred ninety".