434189940 has 24 divisors (see below), whose sum is σ = 1215732000. Its totient is φ = 115783968.

The previous prime is 434189933. The next prime is 434189969. The reversal of 434189940 is 49981434.

It is a junction number, because it is equal to n+sod(n) for n = 434189892 and 434189901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3618190 + ... + 3618309.

It is an arithmetic number, because the mean of its divisors is an integer number (50655500).

Almost surely, 2^434189940 is an apocalyptic number.

It is an amenable number.

434189940 is an abundant number, since it is smaller than the sum of its proper divisors (781542060).

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

434189940 is a wasteful number, since it uses less digits than its factorization.

434189940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7236511 (or 7236509 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 434189940 is about 20837.2248632106. The cubic root of 434189940 is about 757.2278624660.

The spelling of 434189940 in words is "four hundred thirty-four million, one hundred eighty-nine thousand, nine hundred forty".