1316990 has 32 divisors (see below), whose sum is σ = 2571264. Its totient is φ = 483840.

The previous prime is 1316989. The next prime is 1316999. The reversal of 1316990 is 996131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10307 + ... + 10433.

It is an arithmetic number, because the mean of its divisors is an integer number (80352).

2^1316990 is an apocalyptic number.

1316990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1316990 is a deficient number, since it is larger than the sum of its proper divisors (1254274).

1316990 is a wasteful number, since it uses less digits than its factorization.

1316990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 1316990 is about 1147.6018473321. The cubic root of 1316990 is about 109.6126874509.

The spelling of 1316990 in words is "one million, three hundred sixteen thousand, nine hundred ninety".