1340212400 has 30 divisors (see below), whose sum is σ = 3219861252. Its totient is φ = 536084800.

The previous prime is 1340212397. The next prime is 1340212403. The reversal of 1340212400 is 42120431.

It is an interprime number because it is at equal distance from previous prime (1340212397) and next prime (1340212403).

It is a super-2 number, since 2×1340212400² = 3592338554227520000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1340212403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1674866 + ... + 1675665.

Almost surely, 2^1340212400 is an apocalyptic number.

1340212400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340212400 is an abundant number, since it is smaller than the sum of its proper divisors (1879648852).

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

1340212400 is a wasteful number, since it uses less digits than its factorization.

1340212400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3350549 (or 3350538 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1340212400 is about 36608.9114834080. The cubic root of 1340212400 is about 1102.5320184790.

Adding to 1340212400 its reverse (42120431), we get a palindrome (1382332831).

The spelling of 1340212400 in words is "one billion, three hundred forty million, two hundred twelve thousand, four hundred".