1343354640 has 40 divisors (see below), whose sum is σ = 4164400128. Its totient is φ = 358227840.

The previous prime is 1343354609. The next prime is 1343354653. The reversal of 1343354640 is 464533431.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2798416 + ... + 2798895.

Almost surely, 2^1343354640 is an apocalyptic number.

1343354640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1343354640 is an abundant number, since it is smaller than the sum of its proper divisors (2821045488).

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

1343354640 is a wasteful number, since it uses less digits than its factorization.

1343354640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5597327 (or 5597321 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 33.

The square root of 1343354640 is about 36651.8026841791. The cubic root of 1343354640 is about 1103.3930054365.

The spelling of 1343354640 in words is "one billion, three hundred forty-three million, three hundred fifty-four thousand, six hundred forty".