434000243989 has 12 divisors (see below), whose sum is σ = 497597220036. Its totient is φ = 377049983232.

The previous prime is 434000243987. The next prime is 434000243993. The reversal of 434000243989 is 989342000434.

It can be written as a sum of positive squares in 6 ways, for example, as 118811196100 + 315189047889 = 344690^2 + 561417^2 .

It is not a de Polignac number, because 434000243989 - 2¹ = 434000243987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434000243983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75527974 + ... + 75533719.

It is an arithmetic number, because the mean of its divisors is an integer number (41466435003).

Almost surely, 2^434000243989 is an apocalyptic number.

It is an amenable number.

434000243989 is a deficient number, since it is larger than the sum of its proper divisors (63596976047).

434000243989 is a wasteful number, since it uses less digits than its factorization.

434000243989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151061736 (or 151061723 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 46.

The spelling of 434000243989 in words is "four hundred thirty-four billion, two hundred forty-three thousand, nine hundred eighty-nine".