1332431340 has 24 divisors (see below), whose sum is σ = 3730807920. Its totient is φ = 355315008.

The previous prime is 1332431323. The next prime is 1332431351. The reversal of 1332431340 is 431342331.

It is a self number, because there is not a number n which added to its sum of digits gives 1332431340.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11103535 + ... + 11103654.

It is an arithmetic number, because the mean of its divisors is an integer number (155450330).

Almost surely, 2^1332431340 is an apocalyptic number.

1332431340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1332431340 is an abundant number, since it is smaller than the sum of its proper divisors (2398376580).

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

1332431340 is a wasteful number, since it uses less digits than its factorization.

1332431340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22207201 (or 22207199 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 1332431340 is about 36502.4840250633. The cubic root of 1332431340 is about 1100.3941672796.

Adding to 1332431340 its reverse (431342331), we get a palindrome (1763773671).

The spelling of 1332431340 in words is "one billion, three hundred thirty-two million, four hundred thirty-one thousand, three hundred forty".