1204413540 has 192 divisors, whose sum is σ = 3852914688. Its totient is φ = 278502400.

The previous prime is 1204413527. The next prime is 1204413559. The reversal of 1204413540 is 453144021.

It is a super-2 number, since 2×1204413540² = 2901223950670663200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1204413540.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1271347 + ... + 1272293.

It is an arithmetic number, because the mean of its divisors is an integer number (20067264).

Almost surely, 2^1204413540 is an apocalyptic number.

1204413540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1204413540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1926457344).

1204413540 is an abundant number, since it is smaller than the sum of its proper divisors (2648501148).

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

1204413540 is a wasteful number, since it uses less digits than its factorization.

1204413540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058 (or 1056 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1204413540 is about 34704.6616465281. The cubic root of 1204413540 is about 1063.9597769199.

Adding to 1204413540 its reverse (453144021), we get a palindrome (1657557561).

The spelling of 1204413540 in words is "one billion, two hundred four million, four hundred thirteen thousand, five hundred forty".