434123140 has 24 divisors (see below), whose sum is σ = 994537152. Its totient is φ = 157862880.

The previous prime is 434123119. The next prime is 434123171. The reversal of 434123140 is 41321434.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 986424 + ... + 986863.

It is an arithmetic number, because the mean of its divisors is an integer number (41439048).

Almost surely, 2^434123140 is an apocalyptic number.

It is an amenable number.

434123140 is an abundant number, since it is smaller than the sum of its proper divisors (560414012).

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

434123140 is a wasteful number, since it uses less digits than its factorization.

434123140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973307 (or 1973305 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 434123140 is about 20835.6219009657. The cubic root of 434123140 is about 757.1890273766.

Adding to 434123140 its reverse (41321434), we get a palindrome (475444574).

The spelling of 434123140 in words is "four hundred thirty-four million, one hundred twenty-three thousand, one hundred forty".