243402413 has 16 divisors (see below), whose sum is σ = 262517760. Its totient is φ = 224851200.

The previous prime is 243402409. The next prime is 243402433. The reversal of 243402413 is 314204342.

It is a cyclic number.

It is not a de Polignac number, because 243402413 - 2² = 243402409 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243402433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 507908 + ... + 508386.

It is an arithmetic number, because the mean of its divisors is an integer number (16407360).

Almost surely, 2^243402413 is an apocalyptic number.

It is an amenable number.

243402413 is a deficient number, since it is larger than the sum of its proper divisors (19115347).

243402413 is a wasteful number, since it uses less digits than its factorization.

243402413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 243402413 is about 15601.3593318018. The cubic root of 243402413 is about 624.3694231037.

Adding to 243402413 its reverse (314204342), we get a palindrome (557606755).

The spelling of 243402413 in words is "two hundred forty-three million, four hundred two thousand, four hundred thirteen".