1303990 has 8 divisors (see below), whose sum is σ = 2347200. Its totient is φ = 521592.

The previous prime is 1303987. The next prime is 1304003. The reversal of 1303990 is 993031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 65190 + ... + 65209.

It is an arithmetic number, because the mean of its divisors is an integer number (293400).

2^1303990 is an apocalyptic number.

1303990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1303990 is a deficient number, since it is larger than the sum of its proper divisors (1043210).

1303990 is a wasteful number, since it uses less digits than its factorization.

1303990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130406.

The product of its (nonzero) digits is 729, while the sum is 25.

The square root of 1303990 is about 1141.9238153222. The cubic root of 1303990 is about 109.2508321532.

The spelling of 1303990 in words is "one million, three hundred three thousand, nine hundred ninety".