1290802296 has 128 divisors (see below), whose sum is σ = 3893760000. Its totient is φ = 356017536.

The previous prime is 1290802291. The next prime is 1290802301. The reversal of 1290802296 is 6922080921.

It is an interprime number because it is at equal distance from previous prime (1290802291) and next prime (1290802301).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1290802291) 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 in 31 ways as a sum of consecutive naturals, for example, 236025 + ... + 241431.

It is an arithmetic number, because the mean of its divisors is an integer number (30420000).

Almost surely, 2^1290802296 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1290802296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1946880000).

1290802296 is an abundant number, since it is smaller than the sum of its proper divisors (2602957704).

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

1290802296 is a wasteful number, since it uses less digits than its factorization.

1290802296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5466 (or 5448 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 1290802296 is about 35927.7371399870. The cubic root of 1290802296 is about 1088.8128634752.

The spelling of 1290802296 in words is "one billion, two hundred ninety million, eight hundred two thousand, two hundred ninety-six".