228140634 has 16 divisors (see below), whose sum is σ = 476119872. Its totient is φ = 72740448.

The previous prime is 228140623. The next prime is 228140639. The reversal of 228140634 is 436041822.

228140634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (228140639) 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, 826459 + ... + 826734.

It is an arithmetic number, because the mean of its divisors is an integer number (29757492).

Almost surely, 2^228140634 is an apocalyptic number.

228140634 is an abundant number, since it is smaller than the sum of its proper divisors (247979238).

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

228140634 is a wasteful number, since it uses less digits than its factorization.

228140634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653221.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 228140634 is about 15104.3250097447. The cubic root of 228140634 is about 611.0370552269.

The spelling of 228140634 in words is "two hundred twenty-eight million, one hundred forty thousand, six hundred thirty-four".