1340778200 has 48 divisors (see below), whose sum is σ = 3161248560. Its totient is φ = 528752000.

The previous prime is 1340778167. The next prime is 1340778203. The reversal of 1340778200 is 28770431.

It is a happy number.

It is a super-4 number, since 4×1340778200⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340778203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33011 + ... + 61410.

It is an arithmetic number, because the mean of its divisors is an integer number (65859345).

Almost surely, 2^1340778200 is an apocalyptic number.

1340778200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340778200 is an abundant number, since it is smaller than the sum of its proper divisors (1820470360).

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

1340778200 is a wasteful number, since it uses less digits than its factorization.

1340778200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94508 (or 94499 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 1340778200 is about 36616.6382946332. The cubic root of 1340778200 is about 1102.6871493253.

The spelling of 1340778200 in words is "one billion, three hundred forty million, seven hundred seventy-eight thousand, two hundred".