1332243440 has 40 divisors (see below), whose sum is σ = 3379056048. Its totient is φ = 484451840.

The previous prime is 1332243427. The next prime is 1332243461. The reversal of 1332243440 is 443422331.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 756077 + ... + 757836.

Almost surely, 2^1332243440 is an apocalyptic number.

1332243440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1332243440 is an abundant number, since it is smaller than the sum of its proper divisors (2046812608).

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

1332243440 is a wasteful number, since it uses less digits than its factorization.

1332243440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513937 (or 1513931 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 1332243440 is about 36499.9101368757. The cubic root of 1332243440 is about 1100.3424388395.

Adding to 1332243440 its reverse (443422331), we get a palindrome (1775665771).

The spelling of 1332243440 in words is "one billion, three hundred thirty-two million, two hundred forty-three thousand, four hundred forty".