428440184 has 8 divisors (see below), whose sum is σ = 803325360. Its totient is φ = 214220088.

The previous prime is 428440169. The next prime is 428440193. The reversal of 428440184 is 481044824.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26777504 + ... + 26777519.

It is an arithmetic number, because the mean of its divisors is an integer number (100415670).

Almost surely, 2^428440184 is an apocalyptic number.

It is an amenable number.

428440184 is a deficient number, since it is larger than the sum of its proper divisors (374885176).

428440184 is a wasteful number, since it uses less digits than its factorization.

428440184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53555029 (or 53555025 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 35.

The square root of 428440184 is about 20698.7966800005. The cubic root of 428440184 is about 753.8704709870.

The spelling of 428440184 in words is "four hundred twenty-eight million, four hundred forty thousand, one hundred eighty-four".