1303553340 has 72 divisors (see below), whose sum is σ = 4013165520. Its totient is φ = 342422784.

The previous prime is 1303553333. The next prime is 1303553341. The reversal of 1303553340 is 433553031.

It is a happy number.

1303553340 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303553341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41985 + ... + 66104.

It is an arithmetic number, because the mean of its divisors is an integer number (55738410).

Almost surely, 2^1303553340 is an apocalyptic number.

1303553340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303553340 is an abundant number, since it is smaller than the sum of its proper divisors (2709612180).

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

1303553340 is a wasteful number, since it uses less digits than its factorization.

1303553340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108171 (or 108166 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 27.

The square root of 1303553340 is about 36104.7550884922. The cubic root of 1303553340 is about 1092.3863604881.

The spelling of 1303553340 in words is "one billion, three hundred three million, five hundred fifty-three thousand, three hundred forty".