1298790 has 24 divisors (see below), whose sum is σ = 3377088. Its totient is φ = 346320.

The previous prime is 1298789. The next prime is 1298797. The reversal of 1298790 is 978921.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298797) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 7126 + ... + 7305.

It is an arithmetic number, because the mean of its divisors is an integer number (140712).

2^1298790 is an apocalyptic number.

1298790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1298790 is an abundant number, since it is smaller than the sum of its proper divisors (2078298).

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

1298790 is a wasteful number, since it uses less digits than its factorization.

1298790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14444 (or 14441 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 1298790 is about 1139.6446814687. The cubic root of 1298790 is about 109.1054166312.

The spelling of 1298790 in words is "one million, two hundred ninety-eight thousand, seven hundred ninety".