1390004 has 24 divisors (see below), whose sum is σ = 3033408. Its totient is φ = 541440.

The previous prime is 1390003. The next prime is 1390019. The reversal of 1390004 is 4000931.

It is a super-2 number, since 2×1390004² = 3864222240032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390003) by changing a digit.

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, 1949 + ... + 2564.

It is an arithmetic number, because the mean of its divisors is an integer number (126392).

2^1390004 is an apocalyptic number.

1390004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1390004 is an abundant number, since it is smaller than the sum of its proper divisors (1643404).

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

1390004 is a wasteful number, since it uses less digits than its factorization.

1390004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4535 (or 4533 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1390004 is about 1178.9843086318. The cubic root of 1390004 is about 111.6020100442.

Adding to 1390004 its reverse (4000931), we get a palindrome (5390935).

The spelling of 1390004 in words is "one million, three hundred ninety thousand, four".