434436640 has 48 divisors (see below), whose sum is σ = 1119666240. Its totient is φ = 157976320.

The previous prime is 434436637. The next prime is 434436641. The reversal of 434436640 is 46634434.

It is a junction number, because it is equal to n+sod(n) for n = 434436596 and 434436605.

It is not an unprimeable number, because it can be changed into a prime (434436641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121660 + ... + 125179.

It is an arithmetic number, because the mean of its divisors is an integer number (23326380).

Almost surely, 2^434436640 is an apocalyptic number.

434436640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

434436640 is an abundant number, since it is smaller than the sum of its proper divisors (685229600).

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

434436640 is a wasteful number, since it uses less digits than its factorization.

434436640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246865 (or 246857 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 34.

The square root of 434436640 is about 20843.1437168197. The cubic root of 434436640 is about 757.3712503608.

The spelling of 434436640 in words is "four hundred thirty-four million, four hundred thirty-six thousand, six hundred forty".