428814492 has 12 divisors (see below), whose sum is σ = 1000567176. Its totient is φ = 142938160.

The previous prime is 428814487. The next prime is 428814509. The reversal of 428814492 is 294418824.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×428814492³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17867259 + ... + 17867282.

It is an arithmetic number, because the mean of its divisors is an integer number (83380598).

Almost surely, 2^428814492 is an apocalyptic number.

It is an amenable number.

428814492 is an abundant number, since it is smaller than the sum of its proper divisors (571752684).

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

428814492 is a wasteful number, since it uses less digits than its factorization.

428814492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35734548 (or 35734546 counting only the distinct ones).

The product of its digits is 147456, while the sum is 42.

The square root of 428814492 is about 20707.8364876681. The cubic root of 428814492 is about 754.0899474529.

The spelling of 428814492 in words is "four hundred twenty-eight million, eight hundred fourteen thousand, four hundred ninety-two".