1240415232 has 176 divisors, whose sum is σ = 3883077120. Its totient is φ = 344604672.

The previous prime is 1240415213. The next prime is 1240415237. The reversal of 1240415232 is 2325140421.

It is a super-2 number, since 2×1240415232² = 3077259895555227648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240415237) 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, 794869 + ... + 796427.

Almost surely, 2^1240415232 is an apocalyptic number.

1240415232 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 1240415232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1941538560).

1240415232 is an abundant number, since it is smaller than the sum of its proper divisors (2642661888).

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

1240415232 is a wasteful number, since it uses less digits than its factorization.

1240415232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626 (or 1608 counting only the distinct ones).

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

The square root of 1240415232 is about 35219.5291280278. The cubic root of 1240415232 is about 1074.4569767270.

Adding to 1240415232 its reverse (2325140421), we get a palindrome (3565555653).

The spelling of 1240415232 in words is "one billion, two hundred forty million, four hundred fifteen thousand, two hundred thirty-two".