1344994540 has 12 divisors (see below), whose sum is σ = 2824488576. Its totient is φ = 537997808.

The previous prime is 1344994537. The next prime is 1344994543. The reversal of 1344994540 is 454994431.

It is an interprime number because it is at equal distance from previous prime (1344994537) and next prime (1344994543).

It is not an unprimeable number, because it can be changed into a prime (1344994543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33624844 + ... + 33624883.

It is an arithmetic number, because the mean of its divisors is an integer number (235374048).

Almost surely, 2^1344994540 is an apocalyptic number.

1344994540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1344994540 is an abundant number, since it is smaller than the sum of its proper divisors (1479494036).

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

1344994540 is a wasteful number, since it uses less digits than its factorization.

1344994540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67249736 (or 67249734 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 1344994540 is about 36674.1672025419. The cubic root of 1344994540 is about 1103.8418118147.

The spelling of 1344994540 in words is "one billion, three hundred forty-four million, nine hundred ninety-four thousand, five hundred forty".