228137630 has 24 divisors (see below), whose sum is σ = 477693288. Its totient is φ = 78218448.

The previous prime is 228137627. The next prime is 228137633. The reversal of 228137630 is 36731822.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (228137627) and next prime (228137633).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228137633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 232304 + ... + 233283.

It is an arithmetic number, because the mean of its divisors is an integer number (19903887).

Almost surely, 2^228137630 is an apocalyptic number.

228137630 is an abundant number, since it is smaller than the sum of its proper divisors (249555658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228137630 is a wasteful number, since it uses less digits than its factorization.

228137630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465608 (or 465601 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 228137630 is about 15104.2255677012. The cubic root of 228137630 is about 611.0343733090.

The spelling of 228137630 in words is "two hundred twenty-eight million, one hundred thirty-seven thousand, six hundred thirty".