1332561944 has 32 divisors (see below), whose sum is σ = 2884939680. Its totient is φ = 565208064.

The previous prime is 1332561917. The next prime is 1332561973. The reversal of 1332561944 is 4491652331.

It is a junction number, because it is equal to n+sod(n) for n = 1332561898 and 1332561907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117227 + ... + 128090.

It is an arithmetic number, because the mean of its divisors is an integer number (90154365).

Almost surely, 2^1332561944 is an apocalyptic number.

1332561944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1332561944 is an abundant number, since it is smaller than the sum of its proper divisors (1552377736).

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

1332561944 is a wasteful number, since it uses less digits than its factorization.

1332561944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245427 (or 245423 counting only the distinct ones).

The product of its digits is 77760, while the sum is 38.

The square root of 1332561944 is about 36504.2729553678. The cubic root of 1332561944 is about 1100.4301193971.

The spelling of 1332561944 in words is "one billion, three hundred thirty-two million, five hundred sixty-one thousand, nine hundred forty-four".