434237139 has 32 divisors (see below), whose sum is σ = 736448000. Its totient is φ = 247720032.

The previous prime is 434237131. The next prime is 434237147. The reversal of 434237139 is 931732434.

It is an interprime number because it is at equal distance from previous prime (434237131) and next prime (434237147).

It is not a de Polignac number, because 434237139 - 2³ = 434237131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (434237131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138117 + ... + 141225.

It is an arithmetic number, because the mean of its divisors is an integer number (23014000).

Almost surely, 2^434237139 is an apocalyptic number.

434237139 is a deficient number, since it is larger than the sum of its proper divisors (302210861).

434237139 is a wasteful number, since it uses less digits than its factorization.

434237139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3864 (or 3858 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 434237139 is about 20838.3573968775. The cubic root of 434237139 is about 757.2552998459.

The spelling of 434237139 in words is "four hundred thirty-four million, two hundred thirty-seven thousand, one hundred thirty-nine".