434540380 has 96 divisors (see below), whose sum is σ = 987033600. Its totient is φ = 160300800.

The previous prime is 434540341. The next prime is 434540399. The reversal of 434540380 is 83045434.

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 31 ways as a sum of consecutive naturals, for example, 2183521 + ... + 2183719.

It is an arithmetic number, because the mean of its divisors is an integer number (10281600).

Almost surely, 2^434540380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 434540380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (493516800).

434540380 is an abundant number, since it is smaller than the sum of its proper divisors (552493220).

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

434540380 is a wasteful number, since it uses less digits than its factorization.

434540380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 434540380 is about 20845.6321564015. The cubic root of 434540380 is about 757.4315302983.

The spelling of 434540380 in words is "four hundred thirty-four million, five hundred forty thousand, three hundred eighty".