428607442434 has 16 divisors (see below), whose sum is σ = 858604219488. Its totient is φ = 142637591712.

The previous prime is 428607442409. The next prime is 428607442547. The reversal of 428607442434 is 434244706824.

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, 57884932 + ... + 57892335.

It is an arithmetic number, because the mean of its divisors is an integer number (53662763718).

Almost surely, 2^428607442434 is an apocalyptic number.

428607442434 is an abundant number, since it is smaller than the sum of its proper divisors (429996777054).

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

428607442434 is a wasteful number, since it uses less digits than its factorization.

428607442434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115777889.

The product of its (nonzero) digits is 4128768, while the sum is 48.

The spelling of 428607442434 in words is "four hundred twenty-eight billion, six hundred seven million, four hundred forty-two thousand, four hundred thirty-four".