1399060 has 24 divisors (see below), whose sum is σ = 3164616. Its totient is φ = 516480.

The previous prime is 1399039. The next prime is 1399063. The reversal of 1399060 is 609931.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1936 + 1397124 = 44^2 + 1182^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399063) 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, 2431 + ... + 2950.

It is an arithmetic number, because the mean of its divisors is an integer number (131859).

2^1399060 is an apocalyptic number.

1399060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1399060 is an abundant number, since it is smaller than the sum of its proper divisors (1765556).

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

1399060 is a wasteful number, since it uses less digits than its factorization.

1399060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5403 (or 5401 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 1399060 is about 1182.8186674212. The cubic root of 1399060 is about 111.8438512785.

The spelling of 1399060 in words is "one million, three hundred ninety-nine thousand, sixty".