1240352412 has 48 divisors (see below), whose sum is σ = 3135968640. Its totient is φ = 379297728.

The previous prime is 1240352389. The next prime is 1240352413. The reversal of 1240352412 is 2142530421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240352413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1039 + ... + 49817.

It is an arithmetic number, because the mean of its divisors is an integer number (65332680).

Almost surely, 2^1240352412 is an apocalyptic number.

1240352412 is a gapful number since it is divisible by the number (12) 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 1240352412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1567984320).

1240352412 is an abundant number, since it is smaller than the sum of its proper divisors (1895616228).

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

1240352412 is a wasteful number, since it uses less digits than its factorization.

1240352412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48962 (or 48960 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1240352412 is about 35218.6372819847. The cubic root of 1240352412 is about 1074.4388380358.

Adding to 1240352412 its reverse (2142530421), we get a palindrome (3382882833).

The spelling of 1240352412 in words is "one billion, two hundred forty million, three hundred fifty-two thousand, four hundred twelve".