229127440 has 20 divisors (see below), whose sum is σ = 532721484. Its totient is φ = 91650944.

The previous prime is 229127429. The next prime is 229127531. The reversal of 229127440 is 44721922.

It can be written as a sum of positive squares in 2 ways, for example, as 161493264 + 67634176 = 12708^2 + 8224^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1431967 + ... + 1432126.

Almost surely, 2^229127440 is an apocalyptic number.

229127440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229127440 is an abundant number, since it is smaller than the sum of its proper divisors (303594044).

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

229127440 is a wasteful number, since it uses less digits than its factorization.

229127440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2864106 (or 2864100 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 229127440 is about 15136.9561008810. The cubic root of 229127440 is about 611.9167870685.

The spelling of 229127440 in words is "two hundred twenty-nine million, one hundred twenty-seven thousand, four hundred forty".