1290082620 has 24 divisors (see below), whose sum is σ = 3612231504. Its totient is φ = 344022016.

The previous prime is 1290082601. The next prime is 1290082631. The reversal of 1290082620 is 262800921.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10750629 + ... + 10750748.

It is an arithmetic number, because the mean of its divisors is an integer number (150509646).

Almost surely, 2^1290082620 is an apocalyptic number.

1290082620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1290082620 is an abundant number, since it is smaller than the sum of its proper divisors (2322148884).

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

1290082620 is a wasteful number, since it uses less digits than its factorization.

1290082620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21501389 (or 21501387 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1290082620 is about 35917.7201392293. The cubic root of 1290082620 is about 1088.6104730284.

The spelling of 1290082620 in words is "one billion, two hundred ninety million, eighty-two thousand, six hundred twenty".