1340555244 has 96 divisors (see below), whose sum is σ = 3695763456. Its totient is φ = 370259520.

The previous prime is 1340555243. The next prime is 1340555257. The reversal of 1340555244 is 4425550431.

It is not an unprimeable number, because it can be changed into a prime (1340555243) 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, 325639 + ... + 329729.

It is an arithmetic number, because the mean of its divisors is an integer number (38497536).

Almost surely, 2^1340555244 is an apocalyptic number.

1340555244 is a gapful number since it is divisible by the number (14) 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 1340555244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1847881728).

1340555244 is an abundant number, since it is smaller than the sum of its proper divisors (2355208212).

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

1340555244 is a wasteful number, since it uses less digits than its factorization.

1340555244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4235 (or 4233 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

The square root of 1340555244 is about 36613.5937050708. The cubic root of 1340555244 is about 1102.6260245385.

The spelling of 1340555244 in words is "one billion, three hundred forty million, five hundred fifty-five thousand, two hundred forty-four".