1290434522 has 32 divisors (see below), whose sum is σ = 2102747472. Its totient is φ = 590413824.

The previous prime is 1290434501. The next prime is 1290434557. The reversal of 1290434522 is 2254340921.

It can be written as a sum of positive squares in 8 ways, for example, as 85581001 + 1204853521 = 9251^2 + 34711^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2091158 + ... + 2091774.

Almost surely, 2^1290434522 is an apocalyptic number.

1290434522 is a deficient number, since it is larger than the sum of its proper divisors (812312950).

1290434522 is a wasteful number, since it uses less digits than its factorization.

1290434522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1290434522 is about 35922.6185292776. The cubic root of 1290434522 is about 1088.7094458565.

The spelling of 1290434522 in words is "one billion, two hundred ninety million, four hundred thirty-four thousand, five hundred twenty-two".