1330342440 has 64 divisors (see below), whose sum is σ = 4561176960. Its totient is φ = 304078080.

The previous prime is 1330342423. The next prime is 1330342469. The reversal of 1330342440 is 442430331.

It is a super-2 number, since 2×1330342440² = 3539622015330307200, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1330342440.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 791031 + ... + 792710.

It is an arithmetic number, because the mean of its divisors is an integer number (71268390).

Almost surely, 2^1330342440 is an apocalyptic number.

1330342440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1330342440 is an abundant number, since it is smaller than the sum of its proper divisors (3230834520).

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

1330342440 is a wasteful number, since it uses less digits than its factorization.

1330342440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583762 (or 1583758 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 1330342440 is about 36473.8596805987. The cubic root of 1330342440 is about 1099.8188241555.

Adding to 1330342440 its reverse (442430331), we get a palindrome (1772772771).

The spelling of 1330342440 in words is "one billion, three hundred thirty million, three hundred forty-two thousand, four hundred forty".