1240245032 has 48 divisors (see below), whose sum is σ = 2586262140. Its totient is φ = 556927488.

The previous prime is 1240244987. The next prime is 1240245037. The reversal of 1240245032 is 2305420421.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 807355396 + 432889636 = 28414^2 + 20806^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1240244989 and 1240245007.

It is not an unprimeable number, because it can be changed into a prime (1240245037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37628 + ... + 62420.

Almost surely, 2^1240245032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1240245032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1293131070).

1240245032 is an abundant number, since it is smaller than the sum of its proper divisors (1346017108).

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

1240245032 is a wasteful number, since it uses less digits than its factorization.

1240245032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24862 (or 24845 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 1240245032 is about 35217.1127720601. The cubic root of 1240245032 is about 1074.4078316404.

Adding to 1240245032 its reverse (2305420421), we get a palindrome (3545665453).

The spelling of 1240245032 in words is "one billion, two hundred forty million, two hundred forty-five thousand, thirty-two".