228140426 has 16 divisors (see below), whose sum is σ = 344863008. Its totient is φ = 113190000.

The previous prime is 228140401. The next prime is 228140443. The reversal of 228140426 is 624041822.

It is a super-2 number, since 2×228140426² = 104096107950922952, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 165476 + ... + 166848.

It is an arithmetic number, because the mean of its divisors is an integer number (21553938).

Almost surely, 2^228140426 is an apocalyptic number.

228140426 is a deficient number, since it is larger than the sum of its proper divisors (116722582).

228140426 is a wasteful number, since it uses less digits than its factorization.

228140426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1957.

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 228140426 is about 15104.3181242981. The cubic root of 228140426 is about 611.0368695289.

The spelling of 228140426 in words is "two hundred twenty-eight million, one hundred forty thousand, four hundred twenty-six".