1281412304 has 10 divisors (see below), whose sum is σ = 2482736370. Its totient is φ = 640706144.

The previous prime is 1281412283. The next prime is 1281412309. The reversal of 1281412304 is 4032141821.

It can be written as a sum of positive squares in only one way, i.e., 821395600 + 460016704 = 28660^2 + 21448^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1281412309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40044119 + ... + 40044150.

It is an arithmetic number, because the mean of its divisors is an integer number (248273637).

Almost surely, 2^1281412304 is an apocalyptic number.

It is an amenable number.

1281412304 is a deficient number, since it is larger than the sum of its proper divisors (1201324066).

1281412304 is an equidigital number, since it uses as much as digits as its factorization.

1281412304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80088277 (or 80088271 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 1281412304 is about 35796.8197470110. The cubic root of 1281412304 is about 1086.1662314064.

The spelling of 1281412304 in words is "one billion, two hundred eighty-one million, four hundred twelve thousand, three hundred four".