228046521 has 8 divisors (see below), whose sum is σ = 304144960. Its totient is φ = 151989552.

The previous prime is 228046513. The next prime is 228046523. The reversal of 228046521 is 125640822.

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

It is not a de Polignac number, because 228046521 - 2³ = 228046513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228046523) 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, 6291 + ... + 22263.

It is an arithmetic number, because the mean of its divisors is an integer number (38018120).

Almost surely, 2^228046521 is an apocalyptic number.

It is an amenable number.

228046521 is a deficient number, since it is larger than the sum of its proper divisors (76098439).

228046521 is a wasteful number, since it uses less digits than its factorization.

228046521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20735.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 228046521 is about 15101.2092562152. The cubic root of 228046521 is about 610.9530216219.

The spelling of 228046521 in words is "two hundred twenty-eight million, forty-six thousand, five hundred twenty-one".