434371686 has 64 divisors (see below), whose sum is σ = 1030579200. Its totient is φ = 119419776.

The previous prime is 434371669. The next prime is 434371699. The reversal of 434371686 is 686173434.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 612300 + ... + 613008.

It is an arithmetic number, because the mean of its divisors is an integer number (16102800).

Almost surely, 2^434371686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 434371686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (515289600).

434371686 is an abundant number, since it is smaller than the sum of its proper divisors (596207514).

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

434371686 is a wasteful number, since it uses less digits than its factorization.

434371686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253.

The product of its digits is 290304, while the sum is 42.

The square root of 434371686 is about 20841.5854963100. The cubic root of 434371686 is about 757.3335028202. Note that the first 3 decimals are identical.

The spelling of 434371686 in words is "four hundred thirty-four million, three hundred seventy-one thousand, six hundred eighty-six".