428169412 has 24 divisors (see below), whose sum is σ = 865499040. Its totient is φ = 183173760.

The previous prime is 428169407. The next prime is 428169419. The reversal of 428169412 is 214961824.

It is not an unprimeable number, because it can be changed into a prime (428169419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285462 + ... + 286957.

It is an arithmetic number, because the mean of its divisors is an integer number (36062460).

Almost surely, 2^428169412 is an apocalyptic number.

It is an amenable number.

428169412 is an abundant number, since it is smaller than the sum of its proper divisors (437329628).

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

428169412 is a wasteful number, since it uses less digits than its factorization.

428169412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572451 (or 572449 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 428169412 is about 20692.2548795437. The cubic root of 428169412 is about 753.7116234276.

The spelling of 428169412 in words is "four hundred twenty-eight million, one hundred sixty-nine thousand, four hundred twelve".