201424240 has 40 divisors (see below), whose sum is σ = 468974448. Its totient is φ = 80455680.

The previous prime is 201424229. The next prime is 201424253. The reversal of 201424240 is 42424102.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76384 + ... + 78976.

Almost surely, 2^201424240 is an apocalyptic number.

201424240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201424240 is an abundant number, since it is smaller than the sum of its proper divisors (267550208).

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

201424240 is a wasteful number, since it uses less digits than its factorization.

201424240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3577 (or 3571 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 201424240 is about 14192.4007835179. The cubic root of 201424240 is about 586.1884331519.

Adding to 201424240 its reverse (42424102), we get a palindrome (243848342).

The spelling of 201424240 in words is "two hundred one million, four hundred twenty-four thousand, two hundred forty".