1340245356 has 24 divisors (see below), whose sum is σ = 3158204784. Its totient is φ = 442324800.

The previous prime is 1340245343. The next prime is 1340245363. The reversal of 1340245356 is 6535420431.

1340245356 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1340245356² = 3592515228559133472, which contains 22 as substring.

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, 551695 + ... + 554118.

It is an arithmetic number, because the mean of its divisors is an integer number (131591866).

Almost surely, 2^1340245356 is an apocalyptic number.

It is an amenable number.

1340245356 is an abundant number, since it is smaller than the sum of its proper divisors (1817959428).

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

1340245356 is a wasteful number, since it uses less digits than its factorization.

1340245356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105921 (or 1105919 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 1340245356 is about 36609.3615896262. The cubic root of 1340245356 is about 1102.5410555410.

Adding to 1340245356 its reverse (6535420431), we get a palindrome (7875665787).

The spelling of 1340245356 in words is "one billion, three hundred forty million, two hundred forty-five thousand, three hundred fifty-six".