1369990 has 8 divisors (see below), whose sum is σ = 2466000. Its totient is φ = 547992.

The previous prime is 1369981. The next prime is 1370027. The reversal of 1369990 is 999631.

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68490 + ... + 68509.

It is an arithmetic number, because the mean of its divisors is an integer number (308250).

2^1369990 is an apocalyptic number.

1369990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1369990 is a deficient number, since it is larger than the sum of its proper divisors (1096010).

1369990 is a wasteful number, since it uses less digits than its factorization.

1369990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137006.

The product of its (nonzero) digits is 13122, while the sum is 37.

The square root of 1369990 is about 1170.4657192759. The cubic root of 1369990 is about 111.0637839182.

The spelling of 1369990 in words is "one million, three hundred sixty-nine thousand, nine hundred ninety".