1240946940 has 96 divisors (see below), whose sum is σ = 3516033024. Its totient is φ = 327006720.

The previous prime is 1240946939. The next prime is 1240946983. The reversal of 1240946940 is 496490421.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2715192 + ... + 2715648.

It is an arithmetic number, because the mean of its divisors is an integer number (36625344).

Almost surely, 2^1240946940 is an apocalyptic number.

1240946940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1240946940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1758016512).

1240946940 is an abundant number, since it is smaller than the sum of its proper divisors (2275086084).

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

1240946940 is a wasteful number, since it uses less digits than its factorization.

1240946940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907 (or 905 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 1240946940 is about 35227.0768018012. The cubic root of 1240946940 is about 1074.6104779486.

The spelling of 1240946940 in words is "one billion, two hundred forty million, nine hundred forty-six thousand, nine hundred forty".