434228139 has 24 divisors (see below), whose sum is σ = 639185040. Its totient is φ = 283998528.

The previous prime is 434228131. The next prime is 434228153. The reversal of 434228139 is 931822434.

434228139 is a `hidden beast` number, since 4 + 342 + 281 + 39 = 666.

It is not a de Polignac number, because 434228139 - 2³ = 434228131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (434228131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 160869 + ... + 163545.

It is an arithmetic number, because the mean of its divisors is an integer number (26632710).

Almost surely, 2^434228139 is an apocalyptic number.

434228139 is a deficient number, since it is larger than the sum of its proper divisors (204956901).

434228139 is a wasteful number, since it uses less digits than its factorization.

434228139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3019 (or 3016 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 434228139 is about 20838.1414478355. The cubic root of 434228139 is about 757.2500681846.

The spelling of 434228139 in words is "four hundred thirty-four million, two hundred twenty-eight thousand, one hundred thirty-nine".