1404642 has 32 divisors (see below), whose sum is σ = 3048192. Its totient is φ = 429824.

The previous prime is 1404617. The next prime is 1404643. The reversal of 1404642 is 2464041.

It is not an unprimeable number, because it can be changed into a prime (1404643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4648 + ... + 4940.

It is an arithmetic number, because the mean of its divisors is an integer number (95256).

2^1404642 is an apocalyptic number.

1404642 is an abundant number, since it is smaller than the sum of its proper divisors (1643550).

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

1404642 is a wasteful number, since it uses less digits than its factorization.

1404642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1404642 is about 1185.1759363065. The cubic root of 1404642 is about 111.9923995693.

Adding to 1404642 its reverse (2464041), we get a palindrome (3868683).

The spelling of 1404642 in words is "one million, four hundred four thousand, six hundred forty-two".