1481961544 has 64 divisors (see below), whose sum is σ = 3353500800. Its totient is φ = 599768064.

The previous prime is 1481961529. The next prime is 1481961577. The reversal of 1481961544 is 4451691841.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1481961544.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356502 + ... + 360634.

It is an arithmetic number, because the mean of its divisors is an integer number (52398450).

Almost surely, 2^1481961544 is an apocalyptic number.

1481961544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1481961544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1676750400).

1481961544 is an abundant number, since it is smaller than the sum of its proper divisors (1871539256).

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

1481961544 is a wasteful number, since it uses less digits than its factorization.

1481961544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4502 (or 4498 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The square root of 1481961544 is about 38496.2536359059. The cubic root of 1481961544 is about 1140.1070854572.

The spelling of 1481961544 in words is "one billion, four hundred eighty-one million, nine hundred sixty-one thousand, five hundred forty-four".