1553341240 has 64 divisors (see below), whose sum is σ = 3822059520. Its totient is φ = 563472000.

The previous prime is 1553341193. The next prime is 1553341247. The reversal of 1553341240 is 421433551.

It is a junction number, because it is equal to n+sod(n) for n = 1553341199 and 1553341208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553341247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185545 + ... + 193735.

It is an arithmetic number, because the mean of its divisors is an integer number (59719680).

Almost surely, 2^1553341240 is an apocalyptic number.

1553341240 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 1553341240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1911029760).

1553341240 is an abundant number, since it is smaller than the sum of its proper divisors (2268718280).

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

1553341240 is a wasteful number, since it uses less digits than its factorization.

1553341240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8644 (or 8640 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 1553341240 is about 39412.4503171269. The cubic root of 1553341240 is about 1158.1255000834.

Adding to 1553341240 its reverse (421433551), we get a palindrome (1974774791).

The spelling of 1553341240 in words is "one billion, five hundred fifty-three million, three hundred forty-one thousand, two hundred forty".