201434720 has 24 divisors (see below), whose sum is σ = 475889904. Its totient is φ = 80573824.

The previous prime is 201434693. The next prime is 201434729. The reversal of 201434720 is 27434102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201434729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 629324 + ... + 629643.

It is an arithmetic number, because the mean of its divisors is an integer number (19828746).

Almost surely, 2^201434720 is an apocalyptic number.

201434720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201434720 is an abundant number, since it is smaller than the sum of its proper divisors (274455184).

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

201434720 is a wasteful number, since it uses less digits than its factorization.

201434720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258982 (or 1258974 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 201434720 is about 14192.7699903860. The cubic root of 201434720 is about 586.1985993369.

Adding to 201434720 its reverse (27434102), we get a palindrome (228868822).

The spelling of 201434720 in words is "two hundred one million, four hundred thirty-four thousand, seven hundred twenty".