1333997280 has 576 divisors, whose sum is σ = 5808112128. Its totient is φ = 270766080.

The previous prime is 1333997243. The next prime is 1333997281. The reversal of 1333997280 is 827993331.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1333997281) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5876527 + ... + 5876753.

It is an arithmetic number, because the mean of its divisors is an integer number (10083528).

Almost surely, 2^1333997280 is an apocalyptic number.

1333997280 is a gapful number since it is divisible by the number (10) 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 1333997280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2904056064).

1333997280 is an abundant number, since it is smaller than the sum of its proper divisors (4474114848).

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

1333997280 is a wasteful number, since it uses less digits than its factorization.

1333997280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 1333997280 is about 36523.9274996543. The cubic root of 1333997280 is about 1100.8250779480.

The spelling of 1333997280 in words is "one billion, three hundred thirty-three million, nine hundred ninety-seven thousand, two hundred eighty".