402413424221 has 8 divisors (see below), whose sum is σ = 402887284800. Its totient is φ = 401939737632.

The previous prime is 402413424209. The next prime is 402413424239. The reversal of 402413424221 is 122424314204.

It is a happy number.

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 402413424221 - 2²² = 402409229917 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 (402413724221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4913816 + ... + 4995038.

It is an arithmetic number, because the mean of its divisors is an integer number (50360910600).

Almost surely, 2^402413424221 is an apocalyptic number.

It is an amenable number.

402413424221 is a deficient number, since it is larger than the sum of its proper divisors (473860579).

402413424221 is a wasteful number, since it uses less digits than its factorization.

402413424221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86995.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 402413424221 its reverse (122424314204), we get a palindrome (524837738425).

The spelling of 402413424221 in words is "four hundred two billion, four hundred thirteen million, four hundred twenty-four thousand, two hundred twenty-one".