1290341312 has 56 divisors (see below), whose sum is σ = 2852623200. Its totient is φ = 574995456.

The previous prime is 1290341279. The next prime is 1290341317. The reversal of 1290341312 is 2131430921.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1290341317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2612 + ... + 50867.

It is an arithmetic number, because the mean of its divisors is an integer number (50939700).

Almost surely, 2^1290341312 is an apocalyptic number.

It is an amenable number.

1290341312 is an abundant number, since it is smaller than the sum of its proper divisors (1562281888).

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

1290341312 is a wasteful number, since it uses less digits than its factorization.

1290341312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53533 (or 53523 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1290341312 is about 35921.3211338336. The cubic root of 1290341312 is about 1088.6832321925.

The spelling of 1290341312 in words is "one billion, two hundred ninety million, three hundred forty-one thousand, three hundred twelve".