1283901904 has 10 divisors (see below), whose sum is σ = 2487559970. Its totient is φ = 641950944.

The previous prime is 1283901893. The next prime is 1283901907. The reversal of 1283901904 is 4091093821.

It can be written as a sum of positive squares in only one way, i.e., 1119036304 + 164865600 = 33452^2 + 12840^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283901907) 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 as a sum of consecutive naturals, namely, 40121919 + ... + 40121950.

It is an arithmetic number, because the mean of its divisors is an integer number (248755997).

Almost surely, 2^1283901904 is an apocalyptic number.

It is an amenable number.

1283901904 is a deficient number, since it is larger than the sum of its proper divisors (1203658066).

1283901904 is an equidigital number, since it uses as much as digits as its factorization.

1283901904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80243877 (or 80243871 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 1283901904 is about 35831.5769119920. The cubic root of 1283901904 is about 1086.8691979927.

The spelling of 1283901904 in words is "one billion, two hundred eighty-three million, nine hundred one thousand, nine hundred four".