201431296 has 72 divisors (see below), whose sum is σ = 441945504. Its totient is φ = 90869760.

The previous prime is 201431287. The next prime is 201431311. The reversal of 201431296 is 692134102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 655975 + ... + 656281.

It is an arithmetic number, because the mean of its divisors is an integer number (6138132).

Almost surely, 2^201431296 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201431296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220972752).

201431296 is an abundant number, since it is smaller than the sum of its proper divisors (240514208).

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

201431296 is a wasteful number, since it uses less digits than its factorization.

201431296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567 (or 553 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 201431296 is about 14192.6493650763. The cubic root of 201431296 is about 586.1952779045.

Adding to 201431296 its reverse (692134102), we get a palindrome (893565398).

The spelling of 201431296 in words is "two hundred one million, four hundred thirty-one thousand, two hundred ninety-six".