1290801426 has 32 divisors (see below), whose sum is σ = 2691057600. Its totient is φ = 412251840.

The previous prime is 1290801409. The next prime is 1290801437. The reversal of 1290801426 is 6241080921.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5521 + ... + 51108.

It is an arithmetic number, because the mean of its divisors is an integer number (84095550).

Almost surely, 2^1290801426 is an apocalyptic number.

1290801426 is an abundant number, since it is smaller than the sum of its proper divisors (1400256174).

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

1290801426 is a wasteful number, since it uses less digits than its factorization.

1290801426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56794.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 1290801426 is about 35927.7250323479. The cubic root of 1290801426 is about 1088.8126188554.

The spelling of 1290801426 in words is "one billion, two hundred ninety million, eight hundred one thousand, four hundred twenty-six".