434021434 has 24 divisors (see below), whose sum is σ = 817828704. Its totient is φ = 169098600.

The previous prime is 434021387. The next prime is 434021437. The reversal of 434021434 is 434120434.

It is a junction number, because it is equal to n+sod(n) for n = 434021399 and 434021408.

It is not an unprimeable number, because it can be changed into a prime (434021437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126412 + ... + 129799.

It is an arithmetic number, because the mean of its divisors is an integer number (34076196).

Almost surely, 2^434021434 is an apocalyptic number.

434021434 is a deficient number, since it is larger than the sum of its proper divisors (383807270).

434021434 is a wasteful number, since it uses less digits than its factorization.

434021434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256242 (or 256231 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 434021434 is about 20833.1810821103. The cubic root of 434021434 is about 757.1298915578.

Adding to 434021434 its reverse (434120434), we get a palindrome (868141868).

The spelling of 434021434 in words is "four hundred thirty-four million, twenty-one thousand, four hundred thirty-four".