1240788946 has 8 divisors (see below), whose sum is σ = 1888962480. Its totient is φ = 611134788.

The previous prime is 1240788943. The next prime is 1240788953. The reversal of 1240788946 is 6498870421.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1240788946.

It is not an unprimeable number, because it can be changed into a prime (1240788943) 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 3 ways as a sum of consecutive naturals, for example, 4629676 + ... + 4629943.

It is an arithmetic number, because the mean of its divisors is an integer number (236120310).

Almost surely, 2^1240788946 is an apocalyptic number.

1240788946 is a deficient number, since it is larger than the sum of its proper divisors (648173534).

1240788946 is an equidigital number, since it uses as much as digits as its factorization.

1240788946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9259688.

The product of its (nonzero) digits is 774144, while the sum is 49.

The square root of 1240788946 is about 35224.8342224630. The cubic root of 1240788946 is about 1074.5648705155.

The spelling of 1240788946 in words is "one billion, two hundred forty million, seven hundred eighty-eight thousand, nine hundred forty-six".