228629749 has 8 divisors (see below), whose sum is σ = 230128920. Its totient is φ = 227136000.

The previous prime is 228629741. The next prime is 228629783. The reversal of 228629749 is 947926822.

It can be written as a sum of positive squares in 4 ways, for example, as 194407249 + 34222500 = 13943^2 + 5850^2 .

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 228629749 - 2³ = 228629741 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 (228629741) 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, 111667 + ... + 113695.

It is an arithmetic number, because the mean of its divisors is an integer number (28766115).

Almost surely, 2^228629749 is an apocalyptic number.

It is an amenable number.

228629749 is a deficient number, since it is larger than the sum of its proper divisors (1499171).

228629749 is a wasteful number, since it uses less digits than its factorization.

228629749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711.

The product of its digits is 870912, while the sum is 49.

The square root of 228629749 is about 15120.5075642321. The cubic root of 228629749 is about 611.4734148173.

The spelling of 228629749 in words is "two hundred twenty-eight million, six hundred twenty-nine thousand, seven hundred forty-nine".