1240140032 has 36 divisors (see below), whose sum is σ = 2605732080. Its totient is φ = 587432448.

The previous prime is 1240140007. The next prime is 1240140037. The reversal of 1240140032 is 2300410421.

It is a super-2 number, since 2×1240140032² = 3075894597937922048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1240140037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122618 + ... + 132345.

Almost surely, 2^1240140032 is an apocalyptic number.

It is an amenable number.

1240140032 is an abundant number, since it is smaller than the sum of its proper divisors (1365592048).

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

1240140032 is an equidigital number, since it uses as much as digits as its factorization.

1240140032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254998 (or 254984 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1240140032 is about 35215.6219879757. The cubic root of 1240140032 is about 1074.3775107486.

Adding to 1240140032 its reverse (2300410421), we get a palindrome (3540550453).

The spelling of 1240140032 in words is "one billion, two hundred forty million, one hundred forty thousand, thirty-two".