1204540 has 24 divisors (see below), whose sum is σ = 2550240. Its totient is φ = 477888.

The previous prime is 1204529. The next prime is 1204561. The reversal of 1204540 is 454021.

It is a super-2 number, since 2×1204540² = 2901833223200, which contains 22 as substring.

It is a congruent number.

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, 4449 + ... + 4711.

It is an arithmetic number, because the mean of its divisors is an integer number (106260).

2^1204540 is an apocalyptic number.

1204540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1204540 is an abundant number, since it is smaller than the sum of its proper divisors (1345700).

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

1204540 is a wasteful number, since it uses less digits than its factorization.

1204540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501 (or 499 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 1204540 is about 1097.5153757465. The cubic root of 1204540 is about 106.3997013201.

Adding to 1204540 its reverse (454021), we get a palindrome (1658561).

The spelling of 1204540 in words is "one million, two hundred four thousand, five hundred forty".