201440425 has 12 divisors (see below), whose sum is σ = 249962176. Its totient is φ = 161038800.

The previous prime is 201440389. The next prime is 201440443. The reversal of 201440425 is 524044102.

It is a happy number.

It is not a de Polignac number, because 201440425 - 2⁹ = 201439913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201440396 and 201440405.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68332 + ... + 71218.

Almost surely, 2^201440425 is an apocalyptic number.

201440425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201440425 is a deficient number, since it is larger than the sum of its proper divisors (48521751).

201440425 is a wasteful number, since it uses less digits than its factorization.

201440425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5688 (or 5683 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 201440425 is about 14192.9709715760. The cubic root of 201440425 is about 586.2041333571.

Adding to 201440425 its reverse (524044102), we get a palindrome (725484527).

The spelling of 201440425 in words is "two hundred one million, four hundred forty thousand, four hundred twenty-five".