1404988 has 24 divisors (see below), whose sum is σ = 2716560. Its totient is φ = 631680.

The previous prime is 1404979. The next prime is 1404989. The reversal of 1404988 is 8894041.

1404988 is nontrivially palindromic in base 5.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1404989) 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, 1803 + ... + 2461.

It is an arithmetic number, because the mean of its divisors is an integer number (113190).

2^1404988 is an apocalyptic number.

It is an amenable number.

1404988 is a deficient number, since it is larger than the sum of its proper divisors (1311572).

1404988 is a wasteful number, since it uses less digits than its factorization.

1404988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717 (or 715 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 1404988 is about 1185.3218972077. The cubic root of 1404988 is about 112.0015943651.

The spelling of 1404988 in words is "one million, four hundred four thousand, nine hundred eighty-eight".