1399942 has 16 divisors (see below), whose sum is σ = 2192832. Its totient is φ = 669760.

The previous prime is 1399919. The next prime is 1399943. The reversal of 1399942 is 2499931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4842 + ... + 5122.

It is an arithmetic number, because the mean of its divisors is an integer number (137052).

2^1399942 is an apocalyptic number.

1399942 is a deficient number, since it is larger than the sum of its proper divisors (792890).

1399942 is a wasteful number, since it uses less digits than its factorization.

1399942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383.

The product of its digits is 17496, while the sum is 37.

The square root of 1399942 is about 1183.1914468927. The cubic root of 1399942 is about 111.8673493306.

It can be divided in two parts, 13999 and 42, that added together give a palindrome (14041).

The spelling of 1399942 in words is "one million, three hundred ninety-nine thousand, nine hundred forty-two".