228872402 has 64 divisors (see below), whose sum is σ = 408443904. Its totient is φ = 95135040.

The previous prime is 228872389. The next prime is 228872407. The reversal of 228872402 is 204278822.

It is not an unprimeable number, because it can be changed into a prime (228872407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1457708 + ... + 1457864.

It is an arithmetic number, because the mean of its divisors is an integer number (6381936).

Almost surely, 2^228872402 is an apocalyptic number.

228872402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

228872402 is a deficient number, since it is larger than the sum of its proper divisors (179571502).

228872402 is a wasteful number, since it uses less digits than its factorization.

228872402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303.

The product of its (nonzero) digits is 28672, while the sum is 35.

The square root of 228872402 is about 15128.5294063898. The cubic root of 228872402 is about 611.6896645951.

The spelling of 228872402 in words is "two hundred twenty-eight million, eight hundred seventy-two thousand, four hundred two".