1290489486 has 32 divisors (see below), whose sum is σ = 3032201088. Its totient is φ = 360975840.

The previous prime is 1290489467. The next prime is 1290489491. The reversal of 1290489486 is 6849840921.

It is a super-2 number, since 2×1290489486² = 3330726226953088392, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 751176 + ... + 752891.

It is an arithmetic number, because the mean of its divisors is an integer number (94756284).

Almost surely, 2^1290489486 is an apocalyptic number.

1290489486 is an abundant number, since it is smaller than the sum of its proper divisors (1741711602).

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

1290489486 is a wasteful number, since it uses less digits than its factorization.

1290489486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504096.

The product of its (nonzero) digits is 995328, while the sum is 51.

The square root of 1290489486 is about 35923.3835544482. The cubic root of 1290489486 is about 1088.7249029178.

The spelling of 1290489486 in words is "one billion, two hundred ninety million, four hundred eighty-nine thousand, four hundred eighty-six".