228760140 has 48 divisors (see below), whose sum is σ = 732033792. Its totient is φ = 52287936.

The previous prime is 228760111. The next prime is 228760141. The reversal of 228760140 is 41067822.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 228760098 and 228760107.

It is not an unprimeable number, because it can be changed into a prime (228760141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271914 + ... + 272753.

It is an arithmetic number, because the mean of its divisors is an integer number (15250704).

Almost surely, 2^228760140 is an apocalyptic number.

228760140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228760140 is an abundant number, since it is smaller than the sum of its proper divisors (503273652).

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

228760140 is a wasteful number, since it uses less digits than its factorization.

228760140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544686 (or 544684 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 228760140 is about 15124.8186765991. The cubic root of 228760140 is about 611.5896369012.

The spelling of 228760140 in words is "two hundred twenty-eight million, seven hundred sixty thousand, one hundred forty".