1371398544 has 60 divisors (see below), whose sum is σ = 3861623376. Its totient is φ = 454320576.

The previous prime is 1371398519. The next prime is 1371398557. The reversal of 1371398544 is 4458931731.

1371398544 is a `hidden beast` number, since 1 + 3 + 7 + 13 + 98 + 544 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1371398544.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5742 + ... + 52685.

Almost surely, 2^1371398544 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 1371398544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1930811688).

1371398544 is an abundant number, since it is smaller than the sum of its proper divisors (2490224832).

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

1371398544 is a wasteful number, since it uses less digits than its factorization.

1371398544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58604 (or 58595 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 1371398544 is about 37032.3985720612. The cubic root of 1371398544 is about 1111.0183398751.

The spelling of 1371398544 in words is "one billion, three hundred seventy-one million, three hundred ninety-eight thousand, five hundred forty-four".