434963640 has 32 divisors (see below), whose sum is σ = 1304891280. Its totient is φ = 115990272.

The previous prime is 434963621. The next prime is 434963647. The reversal of 434963640 is 46369434.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434963647) 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, 1812229 + ... + 1812468.

Almost surely, 2^434963640 is an apocalyptic number.

434963640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

434963640 is an abundant number, since it is smaller than the sum of its proper divisors (869927640).

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

434963640 is a wasteful number, since it uses less digits than its factorization.

434963640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3624711 (or 3624707 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 39.

The square root of 434963640 is about 20855.7819321166. The cubic root of 434963640 is about 757.6773735318.

The spelling of 434963640 in words is "four hundred thirty-four million, nine hundred sixty-three thousand, six hundred forty".