1204440 has 32 divisors (see below), whose sum is σ = 3613680. Its totient is φ = 321152.

The previous prime is 1204421. The next prime is 1204447. The reversal of 1204440 is 444021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204447) 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, 4899 + ... + 5138.

2^1204440 is an apocalyptic number.

1204440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1204440 is an abundant number, since it is smaller than the sum of its proper divisors (2409240).

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

1204440 is a wasteful number, since it uses less digits than its factorization.

1204440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10051 (or 10047 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 1204440 is about 1097.4698173526. The cubic root of 1204440 is about 106.3967568311.

Adding to 1204440 its reverse (444021), we get a palindrome (1648461).

It can be divided in two parts, 120 and 4440, that added together give a triangular number (4560 = T₉₅).

The spelling of 1204440 in words is "one million, two hundred four thousand, four hundred forty".