434857840 has 20 divisors (see below), whose sum is σ = 1011044664. Its totient is φ = 173943104.

The previous prime is 434857831. The next prime is 434857853. The reversal of 434857840 is 48758434.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2717782 + ... + 2717941.

Almost surely, 2^434857840 is an apocalyptic number.

434857840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

434857840 is an abundant number, since it is smaller than the sum of its proper divisors (576186824).

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

434857840 is a wasteful number, since it uses less digits than its factorization.

434857840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5435736 (or 5435730 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 43.

The square root of 434857840 is about 20853.2453109822. The cubic root of 434857840 is about 757.6159363915.

The spelling of 434857840 in words is "four hundred thirty-four million, eight hundred fifty-seven thousand, eight hundred forty".