1204400 has 30 divisors (see below), whose sum is σ = 2894532. Its totient is φ = 481600.

The previous prime is 1204397. The next prime is 1204409. The reversal of 1204400 is 44021.

It is a super-3 number, since 3×1204400³ = 5241233343552000000, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1204409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1106 + ... + 1905.

2^1204400 is an apocalyptic number.

1204400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1204400 is an abundant number, since it is smaller than the sum of its proper divisors (1690132).

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

1204400 is a wasteful number, since it uses less digits than its factorization.

1204400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3029 (or 3018 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 1204400 is about 1097.4515934655. The cubic root of 1204400 is about 106.3955789898.

Adding to 1204400 its reverse (44021), we get a palindrome (1248421).

The spelling of 1204400 in words is "one million, two hundred four thousand, four hundred".