1240156914 has 8 divisors (see below), whose sum is σ = 2480313840. Its totient is φ = 413385636.

The previous prime is 1240156913. The next prime is 1240156921. The reversal of 1240156914 is 4196510421.

It is a sphenic number, since it is the product of 3 distinct primes.

1240156914 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1240156913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103346404 + ... + 103346415.

It is an arithmetic number, because the mean of its divisors is an integer number (310039230).

Almost surely, 2^1240156914 is an apocalyptic number.

1240156914 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1240156914 is a wasteful number, since it uses less digits than its factorization.

1240156914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206692824.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 1240156914 is about 35215.8616819183. The cubic root of 1240156914 is about 1074.3823858860.

The spelling of 1240156914 in words is "one billion, two hundred forty million, one hundred fifty-six thousand, nine hundred fourteen".