1240916156 has 12 divisors (see below), whose sum is σ = 2299344768. Its totient is φ = 583960512.

The previous prime is 1240916153. The next prime is 1240916161. The reversal of 1240916156 is 6516190421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240916153) 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, 9124316 + ... + 9124451.

It is an arithmetic number, because the mean of its divisors is an integer number (191612064).

Almost surely, 2^1240916156 is an apocalyptic number.

It is an amenable number.

1240916156 is a deficient number, since it is larger than the sum of its proper divisors (1058428612).

1240916156 is a wasteful number, since it uses less digits than its factorization.

1240916156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18248788 (or 18248786 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 1240916156 is about 35226.6398624677. The cubic root of 1240916156 is about 1074.6015919704.

The spelling of 1240916156 in words is "one billion, two hundred forty million, nine hundred sixteen thousand, one hundred fifty-six".