228662402 has 4 divisors (see below), whose sum is σ = 342993606. Its totient is φ = 114331200.

The previous prime is 228662381. The next prime is 228662429. The reversal of 228662402 is 204266822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 165920161 + 62742241 = 12881^2 + 7921^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57165599 + ... + 57165602.

Almost surely, 2^228662402 is an apocalyptic number.

228662402 is a deficient number, since it is larger than the sum of its proper divisors (114331204).

228662402 is a wasteful number, since it uses less digits than its factorization.

228662402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114331203.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 228662402 is about 15121.5872844090. The cubic root of 228662402 is about 611.5025237311.

The spelling of 228662402 in words is "two hundred twenty-eight million, six hundred sixty-two thousand, four hundred two".