402240221313 has 32 divisors (see below), whose sum is σ = 649073698560. Its totient is φ = 216303851520.

The previous prime is 402240221303. The next prime is 402240221359. The reversal of 402240221313 is 313122042204.

It is a happy number.

It is not a de Polignac number, because 402240221313 - 2⁸ = 402240221057 is a prime.

It is a super-3 number, since 3×402240221313³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (402240221303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2975883 + ... + 3108111.

It is an arithmetic number, because the mean of its divisors is an integer number (20283553080).

Almost surely, 2^402240221313 is an apocalyptic number.

It is an amenable number.

402240221313 is a deficient number, since it is larger than the sum of its proper divisors (246833477247).

402240221313 is a wasteful number, since it uses less digits than its factorization.

402240221313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140777.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 402240221313 its reverse (313122042204), we get a palindrome (715362263517).

The spelling of 402240221313 in words is "four hundred two billion, two hundred forty million, two hundred twenty-one thousand, three hundred thirteen".