428927520 has 96 divisors (see below), whose sum is σ = 1544151168. Its totient is φ = 98039808.

The previous prime is 428927503. The next prime is 428927533. The reversal of 428927520 is 25729824.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60469 + ... + 67188.

It is an arithmetic number, because the mean of its divisors is an integer number (16084908).

Almost surely, 2^428927520 is an apocalyptic number.

428927520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

428927520 is an abundant number, since it is smaller than the sum of its proper divisors (1115223648).

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

428927520 is a wasteful number, since it uses less digits than its factorization.

428927520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127682 (or 127674 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 428927520 is about 20710.5654196113. The cubic root of 428927520 is about 754.1561966062.

The spelling of 428927520 in words is "four hundred twenty-eight million, nine hundred twenty-seven thousand, five hundred twenty".