1219404 has 24 divisors (see below), whose sum is σ = 2863168. Its totient is φ = 403920.

The previous prime is 1219399. The next prime is 1219411. The reversal of 1219404 is 4049121.

It is a super-2 number, since 2×1219404² = 2973892230432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3519 + ... + 3849.

2^1219404 is an apocalyptic number.

It is an amenable number.

1219404 is an abundant number, since it is smaller than the sum of its proper divisors (1643764).

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

1219404 is a wasteful number, since it uses less digits than its factorization.

1219404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645 (or 643 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1219404 is about 1104.2662722369. The cubic root of 1219404 is about 106.8355700790.

The spelling of 1219404 in words is "one million, two hundred nineteen thousand, four hundred four".