228304497 has 8 divisors (see below), whose sum is σ = 304627680. Its totient is φ = 152092160.

The previous prime is 228304493. The next prime is 228304529. The reversal of 228304497 is 794403822.

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 228304497 - 2² = 228304493 is a prime.

It is a super-3 number, since 3×228304497³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (228304493) 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, 22779 + ... + 31232.

It is an arithmetic number, because the mean of its divisors is an integer number (38078460).

Almost surely, 2^228304497 is an apocalyptic number.

It is an amenable number.

228304497 is a deficient number, since it is larger than the sum of its proper divisors (76323183).

228304497 is a wasteful number, since it uses less digits than its factorization.

228304497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55423.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 228304497 is about 15109.7484095534. The cubic root of 228304497 is about 611.1833135541.

The spelling of 228304497 in words is "two hundred twenty-eight million, three hundred four thousand, four hundred ninety-seven".