1404408 has 32 divisors (see below), whose sum is σ = 3542400. Its totient is φ = 463968.

The previous prime is 1404397. The next prime is 1404419. The reversal of 1404408 is 8044041.

It is an interprime number because it is at equal distance from previous prime (1404397) and next prime (1404419).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3733 + ... + 4091.

It is an arithmetic number, because the mean of its divisors is an integer number (110700).

2^1404408 is an apocalyptic number.

It is an amenable number.

1404408 is an abundant number, since it is smaller than the sum of its proper divisors (2137992).

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

1404408 is a wasteful number, since it uses less digits than its factorization.

1404408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531 (or 527 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1404408 is about 1185.0772126743. The cubic root of 1404408 is about 111.9861802676.

Adding to 1404408 its reverse (8044041), we get a palindrome (9448449).

The spelling of 1404408 in words is "one million, four hundred four thousand, four hundred eight".