1361376544 has 48 divisors (see below), whose sum is σ = 2952331200. Its totient is φ = 612783360.

The previous prime is 1361376529. The next prime is 1361376547. The reversal of 1361376544 is 4456731631.

It is a junction number, because it is equal to n+sod(n) for n = 1361376497 and 1361376506.

It is not an unprimeable number, because it can be changed into a prime (1361376547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17482 + ... + 55030.

It is an arithmetic number, because the mean of its divisors is an integer number (61506900).

Almost surely, 2^1361376544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1361376544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1476165600).

1361376544 is an abundant number, since it is smaller than the sum of its proper divisors (1590954656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1361376544 is a wasteful number, since it uses less digits than its factorization.

1361376544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37673 (or 37665 counting only the distinct ones).

The product of its digits is 181440, while the sum is 40.

The square root of 1361376544 is about 36896.8365039606. The cubic root of 1361376544 is about 1108.3053284097.

The spelling of 1361376544 in words is "one billion, three hundred sixty-one million, three hundred seventy-six thousand, five hundred forty-four".