434202140 has 24 divisors (see below), whose sum is σ = 912401280. Its totient is φ = 173571008.

The previous prime is 434202137. The next prime is 434202149. The reversal of 434202140 is 41202434.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434202149) 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, 30506 + ... + 42414.

It is an arithmetic number, because the mean of its divisors is an integer number (38016720).

Almost surely, 2^434202140 is an apocalyptic number.

It is an amenable number.

434202140 is an abundant number, since it is smaller than the sum of its proper divisors (478199140).

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

434202140 is a wasteful number, since it uses less digits than its factorization.

434202140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13741 (or 13739 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 434202140 is about 20837.5176064713. The cubic root of 434202140 is about 757.2349546720.

Adding to 434202140 its reverse (41202434), we get a palindrome (475404574).

The spelling of 434202140 in words is "four hundred thirty-four million, two hundred two thousand, one hundred forty".