1390874 has 8 divisors (see below), whose sum is σ = 2112960. Its totient is φ = 686556.

The previous prime is 1390859. The next prime is 1390891. The reversal of 1390874 is 4780931.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1390874.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4244 + ... + 4559.

It is an arithmetic number, because the mean of its divisors is an integer number (264120).

2^1390874 is an apocalyptic number.

1390874 is a deficient number, since it is larger than the sum of its proper divisors (722086).

1390874 is an equidigital number, since it uses as much as digits as its factorization.

1390874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8884.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 1390874 is about 1179.3532125703. The cubic root of 1390874 is about 111.6252889937.

The spelling of 1390874 in words is "one million, three hundred ninety thousand, eight hundred seventy-four".