428575481 has 8 divisors (see below), whose sum is σ = 438672000. Its totient is φ = 418593312.

The previous prime is 428575429. The next prime is 428575489. The reversal of 428575481 is 184575824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 428575481 - 2⁶ = 428575417 is a prime.

It is a super-2 number, since 2×428575481² = 367353885828762722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428575489) 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, 20981 + ... + 36018.

It is an arithmetic number, because the mean of its divisors is an integer number (54834000).

Almost surely, 2^428575481 is an apocalyptic number.

It is an amenable number.

428575481 is a deficient number, since it is larger than the sum of its proper divisors (10096519).

428575481 is a wasteful number, since it uses less digits than its factorization.

428575481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57175.

The product of its digits is 358400, while the sum is 44.

The square root of 428575481 is about 20702.0646554879. The cubic root of 428575481 is about 753.9498174802.

The spelling of 428575481 in words is "four hundred twenty-eight million, five hundred seventy-five thousand, four hundred eighty-one".