1404013 has 8 divisors (see below), whose sum is σ = 1601208. Its totient is φ = 1219584.

The previous prime is 1403981. The next prime is 1404059. The reversal of 1404013 is 3104041.

It can be written as a sum of positive squares in 4 ways, for example, as 142884 + 1261129 = 378^2 + 1123^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1404013 - 2⁵ = 1403981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1403984 and 1404002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1804013) 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, 2956 + ... + 3397.

It is an arithmetic number, because the mean of its divisors is an integer number (200151).

2^1404013 is an apocalyptic number.

1404013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1404013 is a deficient number, since it is larger than the sum of its proper divisors (197195).

1404013 is a wasteful number, since it uses less digits than its factorization.

1404013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6383.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1404013 is about 1184.9105451468. The cubic root of 1404013 is about 111.9756803063.

Adding to 1404013 its reverse (3104041), we get a palindrome (4508054).

The spelling of 1404013 in words is "one million, four hundred four thousand, thirteen".