228749651 has 48 divisors (see below), whose sum is σ = 282428160. Its totient is φ = 183617280.

The previous prime is 228749641. The next prime is 228749657. The reversal of 228749651 is 156947822.

It is a happy number.

228749651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228749651 - 2¹⁰ = 228748627 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228749657) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6182405 + ... + 6182441.

It is an arithmetic number, because the mean of its divisors is an integer number (5883920).

Almost surely, 2^228749651 is an apocalyptic number.

228749651 is a deficient number, since it is larger than the sum of its proper divisors (53678509).

228749651 is a wasteful number, since it uses less digits than its factorization.

228749651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 133 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 228749651 is about 15124.4719246657. The cubic root of 228749651 is about 611.5802893203.

The spelling of 228749651 in words is "two hundred twenty-eight million, seven hundred forty-nine thousand, six hundred fifty-one".