1404156 has 24 divisors (see below), whose sum is σ = 3528784. Its totient is φ = 432000.

The previous prime is 1404133. The next prime is 1404163. The reversal of 1404156 is 6514041.

It is a Smith number, since the sum of its digits (21) coincides with the sum of the digits of its prime factors.

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, 4345 + ... + 4656.

2^1404156 is an apocalyptic number.

It is an amenable number.

1404156 is an abundant number, since it is smaller than the sum of its proper divisors (2124628).

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

1404156 is a wasteful number, since it uses less digits than its factorization.

1404156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9021 (or 9019 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1404156 is about 1184.9708857183. The cubic root of 1404156 is about 111.9794817855.

Adding to 1404156 its reverse (6514041), we get a palindrome (7918197).

It can be divided in two parts, 1404 and 156, that multiplied together give a square (219024 = 468²).

The spelling of 1404156 in words is "one million, four hundred four thousand, one hundred fifty-six".