1340496378 has 96 divisors (see below), whose sum is σ = 3258545472. Its totient is φ = 410572800.

The previous prime is 1340496371. The next prime is 1340496383. The reversal of 1340496378 is 8736940431.

1340496378 is a `hidden beast` number, since 1 + 3 + 4 + 0 + 4 + 9 + 637 + 8 = 666.

It is a super-2 number, since 2×1340496378² = 3593861078862237768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1340496371) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2090938 + ... + 2091578.

It is an arithmetic number, because the mean of its divisors is an integer number (33943182).

Almost surely, 2^1340496378 is an apocalyptic number.

1340496378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1340496378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1629272736).

1340496378 is an abundant number, since it is smaller than the sum of its proper divisors (1918049094).

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

1340496378 is a wasteful number, since it uses less digits than its factorization.

1340496378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002 (or 990 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 1340496378 is about 36612.7898144897. The cubic root of 1340496378 is about 1102.6098849242.

The spelling of 1340496378 in words is "one billion, three hundred forty million, four hundred ninety-six thousand, three hundred seventy-eight".