13402220324 has 6 divisors (see below), whose sum is σ = 23453885574. Its totient is φ = 6701110160.

The previous prime is 13402220311. The next prime is 13402220329. The reversal of 13402220324 is 42302220431.

It can be written as a sum of positive squares in only one way, i.e., 13289478400 + 112741924 = 115280^2 + 10618^2 .

It is a super-2 number, since 2×13402220324² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13402220324.

It is not an unprimeable number, because it can be changed into a prime (13402220329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1675277537 + ... + 1675277544.

It is an arithmetic number, because the mean of its divisors is an integer number (3908980929).

Almost surely, 2^13402220324 is an apocalyptic number.

It is an amenable number.

13402220324 is a deficient number, since it is larger than the sum of its proper divisors (10051665250).

13402220324 is a wasteful number, since it uses less digits than its factorization.

13402220324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3350555085 (or 3350555083 counting only the distinct ones).

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

Adding to 13402220324 its reverse (42302220431), we get a palindrome (55704440755).

The spelling of 13402220324 in words is "thirteen billion, four hundred two million, two hundred twenty thousand, three hundred twenty-four".