1240355212 has 12 divisors (see below), whose sum is σ = 2206206016. Its totient is φ = 610010640.

The previous prime is 1240355209. The next prime is 1240355227. The reversal of 1240355212 is 2125530421.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2541468 + ... + 2541955.

Almost surely, 2^1240355212 is an apocalyptic number.

It is an amenable number.

1240355212 is a deficient number, since it is larger than the sum of its proper divisors (965850804).

1240355212 is a wasteful number, since it uses less digits than its factorization.

1240355212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5083488 (or 5083486 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1240355212 is about 35218.6770336422. The cubic root of 1240355212 is about 1074.4396465228.

Adding to 1240355212 its reverse (2125530421), we get a palindrome (3365885633).

The spelling of 1240355212 in words is "one billion, two hundred forty million, three hundred fifty-five thousand, two hundred twelve".