1331630348 has 12 divisors (see below), whose sum is σ = 2332365000. Its totient is φ = 665240352.

The previous prime is 1331630341. The next prime is 1331630369. The reversal of 1331630348 is 8430361331.

It is a super-2 number, since 2×1331630348² = 3546478767429202208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1331630341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138473 + ... + 147776.

It is an arithmetic number, because the mean of its divisors is an integer number (194363750).

Almost surely, 2^1331630348 is an apocalyptic number.

It is an amenable number.

1331630348 is a deficient number, since it is larger than the sum of its proper divisors (1000734652).

1331630348 is a wasteful number, since it uses less digits than its factorization.

1331630348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287416 (or 287414 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 1331630348 is about 36491.5106291861. The cubic root of 1331630348 is about 1100.1736221811.

Adding to 1331630348 its reverse (8430361331), we get a palindrome (9761991679).

The spelling of 1331630348 in words is "one billion, three hundred thirty-one million, six hundred thirty thousand, three hundred forty-eight".