1340022156 has 24 divisors (see below), whose sum is σ = 3410965824. Its totient is φ = 406067280.

The previous prime is 1340022149. The next prime is 1340022157. The reversal of 1340022156 is 6512200431.

It is not an unprimeable number, because it can be changed into a prime (1340022157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5075710 + ... + 5075973.

It is an arithmetic number, because the mean of its divisors is an integer number (142123576).

Almost surely, 2^1340022156 is an apocalyptic number.

It is an amenable number.

1340022156 is an abundant number, since it is smaller than the sum of its proper divisors (2070943668).

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

1340022156 is a wasteful number, since it uses less digits than its factorization.

1340022156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10151701 (or 10151699 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1340022156 is about 36606.3130620935. The cubic root of 1340022156 is about 1102.4798476374.

Adding to 1340022156 its reverse (6512200431), we get a palindrome (7852222587).

The spelling of 1340022156 in words is "one billion, three hundred forty million, twenty-two thousand, one hundred fifty-six".