434721440 has 48 divisors (see below), whose sum is σ = 1044459360. Its totient is φ = 170937600.

The previous prime is 434721421. The next prime is 434721457. The reversal of 434721440 is 44127434.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13586 + ... + 32465.

It is an arithmetic number, because the mean of its divisors is an integer number (21759570).

Almost surely, 2^434721440 is an apocalyptic number.

434721440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

434721440 is an abundant number, since it is smaller than the sum of its proper divisors (609737920).

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

434721440 is a wasteful number, since it uses less digits than its factorization.

434721440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46125 (or 46117 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 434721440 is about 20849.9745803202. The cubic root of 434721440 is about 757.5367153905.

Adding to 434721440 its reverse (44127434), we get a palindrome (478848874).

The spelling of 434721440 in words is "four hundred thirty-four million, seven hundred twenty-one thousand, four hundred forty".