1331970048 has 120 divisors (see below), whose sum is σ = 3947768160. Its totient is φ = 443842560.

The previous prime is 1331970041. The next prime is 1331970061. The reversal of 1331970048 is 8400791331.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1331969994 and 1331970021.

It is not an unprimeable number, because it can be changed into a prime (1331970041) 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, 440863 + ... + 443873.

It is an arithmetic number, because the mean of its divisors is an integer number (32898068).

Almost surely, 2^1331970048 is an apocalyptic number.

1331970048 is a gapful number since it is divisible by the number (18) 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 1331970048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1973884080).

1331970048 is an abundant number, since it is smaller than the sum of its proper divisors (2615798112).

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

1331970048 is an frugal number, since it uses more digits than its factorization.

1331970048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3048 (or 3016 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1331970048 is about 36496.1648396102. The cubic root of 1331970048 is about 1100.2671659600.

The spelling of 1331970048 in words is "one billion, three hundred thirty-one million, nine hundred seventy thousand, forty-eight".