1340842880 has 64 divisors (see below), whose sum is σ = 3452047200. Its totient is φ = 495077376.

The previous prime is 1340842879. The next prime is 1340842883. The reversal of 1340842880 is 882480431.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340842883) 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, 72260 + ... + 88899.

Almost surely, 2^1340842880 is an apocalyptic number.

1340842880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340842880 is an abundant number, since it is smaller than the sum of its proper divisors (2111204320).

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

1340842880 is a wasteful number, since it uses less digits than its factorization.

1340842880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161191 (or 161179 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 1340842880 is about 36617.5214890358. The cubic root of 1340842880 is about 1102.7048804852.

The spelling of 1340842880 in words is "one billion, three hundred forty million, eight hundred forty-two thousand, eight hundred eighty".