202439431 has 8 divisors (see below), whose sum is σ = 203600880. Its totient is φ = 201282048.

The previous prime is 202439429. The next prime is 202439441. The reversal of 202439431 is 134934202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202439431 - 2¹ = 202439429 is a prime.

It is a super-2 number, since 2×202439431² = 81963446447207522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202439431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202439441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165735 + ... + 166951.

It is an arithmetic number, because the mean of its divisors is an integer number (25450110).

Almost surely, 2^202439431 is an apocalyptic number.

202439431 is a deficient number, since it is larger than the sum of its proper divisors (1161449).

202439431 is a wasteful number, since it uses less digits than its factorization.

202439431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2033.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 202439431 is about 14228.1211338673. The cubic root of 202439431 is about 587.1715922831.

The spelling of 202439431 in words is "two hundred two million, four hundred thirty-nine thousand, four hundred thirty-one".