1340333553 has 8 divisors (see below), whose sum is σ = 1924581568. Its totient is φ = 824820624.

The previous prime is 1340333507. The next prime is 1340333557. The reversal of 1340333553 is 3553330431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1340333553 - 2¹⁸ = 1340071409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1340333553.

It is not an unprimeable number, because it can be changed into a prime (1340333557) 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, 17183725 + ... + 17183802.

It is an arithmetic number, because the mean of its divisors is an integer number (240572696).

Almost surely, 2^1340333553 is an apocalyptic number.

1340333553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1340333553 is a deficient number, since it is larger than the sum of its proper divisors (584248015).

1340333553 is a wasteful number, since it uses less digits than its factorization.

1340333553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34367543.

The product of its (nonzero) digits is 24300, while the sum is 30.

The square root of 1340333553 is about 36610.5661387529. The cubic root of 1340333553 is about 1102.5652398393.

Adding to 1340333553 its reverse (3553330431), we get a palindrome (4893663984).

The spelling of 1340333553 in words is "one billion, three hundred forty million, three hundred thirty-three thousand, five hundred fifty-three".