428489522 has 32 divisors (see below), whose sum is σ = 699736320. Its totient is φ = 196035840.

The previous prime is 428489497. The next prime is 428489527. The reversal of 428489522 is 225984824.

It is not an unprimeable number, because it can be changed into a prime (428489527) 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, 178772 + ... + 181152.

It is an arithmetic number, because the mean of its divisors is an integer number (21866760).

Almost surely, 2^428489522 is an apocalyptic number.

428489522 is a deficient number, since it is larger than the sum of its proper divisors (271246798).

428489522 is a wasteful number, since it uses less digits than its factorization.

428489522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2546.

The product of its digits is 368640, while the sum is 44.

The square root of 428489522 is about 20699.9884541031. The cubic root of 428489522 is about 753.8994077635.

The spelling of 428489522 in words is "four hundred twenty-eight million, four hundred eighty-nine thousand, five hundred twenty-two".