1399662 has 24 divisors (see below), whose sum is σ = 3308760. Its totient is φ = 424080.

The previous prime is 1399639. The next prime is 1399663. The reversal of 1399662 is 2669931.

It is a nude number because it is divisible by every one of its digits.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3337 + ... + 3732.

It is an arithmetic number, because the mean of its divisors is an integer number (137865).

2^1399662 is an apocalyptic number.

1399662 is an abundant number, since it is smaller than the sum of its proper divisors (1909098).

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

1399662 is a wasteful number, since it uses less digits than its factorization.

1399662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7088 (or 7085 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 1399662 is about 1183.0731169290. The cubic root of 1399662 is about 111.8598907011.

It can be divided in two parts, 139 and 9662, that added together give a square (9801 = 99²).

The spelling of 1399662 in words is "one million, three hundred ninety-nine thousand, six hundred sixty-two".