1390966 has 8 divisors (see below), whose sum is σ = 2137464. Its totient is φ = 678480.

The previous prime is 1390937. The next prime is 1390967. The reversal of 1390966 is 6690931.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8400 + ... + 8563.

It is an arithmetic number, because the mean of its divisors is an integer number (267183).

2^1390966 is an apocalyptic number.

1390966 is a deficient number, since it is larger than the sum of its proper divisors (746498).

1390966 is a wasteful number, since it uses less digits than its factorization.

1390966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17006.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 1390966 is about 1179.3922163555. The cubic root of 1390966 is about 111.6277501081.

The spelling of 1390966 in words is "one million, three hundred ninety thousand, nine hundred sixty-six".