1399854 has 16 divisors (see below), whose sum is σ = 2817360. Its totient is φ = 463680.

The previous prime is 1399847. The next prime is 1399861. The reversal of 1399854 is 4589931.

It is an interprime number because it is at equal distance from previous prime (1399847) and next prime (1399861).

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 7 ways as a sum of consecutive naturals, for example, 442 + ... + 1730.

It is an arithmetic number, because the mean of its divisors is an integer number (176085).

2^1399854 is an apocalyptic number.

1399854 is an abundant number, since it is smaller than the sum of its proper divisors (1417506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1399854 is a wasteful number, since it uses less digits than its factorization.

1399854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475.

The product of its digits is 38880, while the sum is 39.

The square root of 1399854 is about 1183.1542587507. The cubic root of 1399854 is about 111.8650052971.

The spelling of 1399854 in words is "one million, three hundred ninety-nine thousand, eight hundred fifty-four".