434787870 has 64 divisors (see below), whose sum is σ = 1157068800. Its totient is φ = 103670400.

The previous prime is 434787863. The next prime is 434787889. The reversal of 434787870 is 78787434.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9331 + ... + 30929.

It is an arithmetic number, because the mean of its divisors is an integer number (18079200).

Almost surely, 2^434787870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 434787870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (578534400).

434787870 is an abundant number, since it is smaller than the sum of its proper divisors (722280930).

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

434787870 is a wasteful number, since it uses less digits than its factorization.

434787870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21681.

The product of its (nonzero) digits is 1053696, while the sum is 48.

The square root of 434787870 is about 20851.5675669720. The cubic root of 434787870 is about 757.5752999462.

The spelling of 434787870 in words is "four hundred thirty-four million, seven hundred eighty-seven thousand, eight hundred seventy".