1333283640 has 128 divisors (see below), whose sum is σ = 4347604800. Its totient is φ = 325140480.

The previous prime is 1333283629. The next prime is 1333283647. The reversal of 1333283640 is 463823331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1333283647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166120 + ... + 173960.

Almost surely, 2^1333283640 is an apocalyptic number.

1333283640 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 1333283640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2173802400).

1333283640 is an abundant number, since it is smaller than the sum of its proper divisors (3014321160).

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

1333283640 is a wasteful number, since it uses less digits than its factorization.

1333283640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7977 (or 7973 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 1333283640 is about 36514.1567066802. The cubic root of 1333283640 is about 1100.6287424807.

The spelling of 1333283640 in words is "one billion, three hundred thirty-three million, two hundred eighty-three thousand, six hundred forty".