228363740 has 24 divisors (see below), whose sum is σ = 523161072. Its totient is φ = 83041280.

The previous prime is 228363739. The next prime is 228363743. The reversal of 228363740 is 47363822.

It is a self number, because there is not a number n which added to its sum of digits gives 228363740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228363743) 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, 518789 + ... + 519228.

It is an arithmetic number, because the mean of its divisors is an integer number (21798378).

Almost surely, 2^228363740 is an apocalyptic number.

228363740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228363740 is an abundant number, since it is smaller than the sum of its proper divisors (294797332).

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

228363740 is a wasteful number, since it uses less digits than its factorization.

228363740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038037 (or 1038035 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 228363740 is about 15111.7087055038. The cubic root of 228363740 is about 611.2361745388.

The spelling of 228363740 in words is "two hundred twenty-eight million, three hundred sixty-three thousand, seven hundred forty".