434136340 has 24 divisors (see below), whose sum is σ = 994567392. Its totient is φ = 157867680.

The previous prime is 434136317. The next prime is 434136371. The reversal of 434136340 is 43631434.

It is a junction number, because it is equal to n+sod(n) for n = 434136299 and 434136308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 986454 + ... + 986893.

It is an arithmetic number, because the mean of its divisors is an integer number (41440308).

Almost surely, 2^434136340 is an apocalyptic number.

It is an amenable number.

434136340 is an abundant number, since it is smaller than the sum of its proper divisors (560431052).

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

434136340 is a wasteful number, since it uses less digits than its factorization.

434136340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1973367 (or 1973365 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 434136340 is about 20835.9386637607. The cubic root of 434136340 is about 757.1967016921.

Adding to 434136340 its reverse (43631434), we get a palindrome (477767774).

The spelling of 434136340 in words is "four hundred thirty-four million, one hundred thirty-six thousand, three hundred forty".