13390240628 has 6 divisors (see below), whose sum is σ = 23432921106. Its totient is φ = 6695120312.

The previous prime is 13390240627. The next prime is 13390240637. The reversal of 13390240628 is 82604209331.

It can be written as a sum of positive squares in only one way, i.e., 13354575844 + 35664784 = 115562^2 + 5972^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13390240591 and 13390240600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13390240627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1673780075 + ... + 1673780082.

It is an arithmetic number, because the mean of its divisors is an integer number (3905486851).

Almost surely, 2^13390240628 is an apocalyptic number.

It is an amenable number.

13390240628 is a deficient number, since it is larger than the sum of its proper divisors (10042680478).

13390240628 is a wasteful number, since it uses less digits than its factorization.

13390240628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3347560161 (or 3347560159 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

Adding to 13390240628 its reverse (82604209331), we get a palindrome (95994449959).

The spelling of 13390240628 in words is "thirteen billion, three hundred ninety million, two hundred forty thousand, six hundred twenty-eight".