228857651 has 8 divisors (see below), whose sum is σ = 249945600. Its totient is φ = 207816840.

The previous prime is 228857639. The next prime is 228857687. The reversal of 228857651 is 156758822.

228857651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-228857651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228857611) 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, 1211 + ... + 21428.

It is an arithmetic number, because the mean of its divisors is an integer number (31243200).

Almost surely, 2^228857651 is an apocalyptic number.

228857651 is a deficient number, since it is larger than the sum of its proper divisors (21087949).

228857651 is a wasteful number, since it uses less digits than its factorization.

228857651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23569.

The product of its digits is 268800, while the sum is 44.

The square root of 228857651 is about 15128.0418759336. The cubic root of 228857651 is about 611.6765230250.

The spelling of 228857651 in words is "two hundred twenty-eight million, eight hundred fifty-seven thousand, six hundred fifty-one".