1329737472 has 180 divisors, whose sum is σ = 4531964976. Its totient is φ = 379883520.

The previous prime is 1329737459. The next prime is 1329737473. The reversal of 1329737472 is 2747379231.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1329737473) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 140572 + ... + 149732.

Almost surely, 2^1329737472 is an apocalyptic number.

1329737472 is a gapful number since it is divisible by the number (12) 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 1329737472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2265982488).

1329737472 is an abundant number, since it is smaller than the sum of its proper divisors (3202227504).

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

1329737472 is an frugal number, since it uses more digits than its factorization.

1329737472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9196 (or 9173 counting only the distinct ones).

The product of its digits is 444528, while the sum is 45.

The square root of 1329737472 is about 36465.5655653385. The cubic root of 1329737472 is about 1099.6520861148.

The spelling of 1329737472 in words is "one billion, three hundred twenty-nine million, seven hundred thirty-seven thousand, four hundred seventy-two".