434438140 has 12 divisors (see below), whose sum is σ = 912320136. Its totient is φ = 173775248.

The previous prime is 434438131. The next prime is 434438141. The reversal of 434438140 is 41834434.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434438141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10860934 + ... + 10860973.

It is an arithmetic number, because the mean of its divisors is an integer number (76026678).

Almost surely, 2^434438140 is an apocalyptic number.

It is an amenable number.

434438140 is an abundant number, since it is smaller than the sum of its proper divisors (477881996).

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

434438140 is a wasteful number, since it uses less digits than its factorization.

434438140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21721916 (or 21721914 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 434438140 is about 20843.1796998443. The cubic root of 434438140 is about 757.3721220304.

The spelling of 434438140 in words is "four hundred thirty-four million, four hundred thirty-eight thousand, one hundred forty".