1240393242 has 32 divisors (see below), whose sum is σ = 2711808000. Its totient is φ = 375113520.

The previous prime is 1240393241. The next prime is 1240393247. The reversal of 1240393242 is 2423930421.

It is not an unprimeable number, because it can be changed into a prime (1240393241) 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 15 ways as a sum of consecutive naturals, for example, 14103 + ... + 51765.

It is an arithmetic number, because the mean of its divisors is an integer number (84744000).

Almost surely, 2^1240393242 is an apocalyptic number.

1240393242 is an abundant number, since it is smaller than the sum of its proper divisors (1471414758).

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

1240393242 is a wasteful number, since it uses less digits than its factorization.

1240393242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38178.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 1240393242 is about 35219.2169418913. The cubic root of 1240393242 is about 1074.4506273886.

The spelling of 1240393242 in words is "one billion, two hundred forty million, three hundred ninety-three thousand, two hundred forty-two".