1121404 has 6 divisors (see below), whose sum is σ = 1962464. Its totient is φ = 560700.

The previous prime is 1121389. The next prime is 1121423. The reversal of 1121404 is 4041211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140172 + ... + 140179.

2^1121404 is an apocalyptic number.

It is an amenable number.

1121404 is a deficient number, since it is larger than the sum of its proper divisors (841060).

1121404 is a wasteful number, since it uses less digits than its factorization.

1121404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280355 (or 280353 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1121404 is about 1058.9636443240. The cubic root of 1121404 is about 103.8932583320.

Adding to 1121404 its reverse (4041211), we get a palindrome (5162615).

The spelling of 1121404 in words is "one million, one hundred twenty-one thousand, four hundred four".