1355104240 has 80 divisors (see below), whose sum is σ = 3716904960. Its totient is φ = 449614080.

The previous prime is 1355104213. The next prime is 1355104253. The reversal of 1355104240 is 424015531.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21670 + ... + 56389.

It is an arithmetic number, because the mean of its divisors is an integer number (46461312).

Almost surely, 2^1355104240 is an apocalyptic number.

1355104240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1355104240 is an abundant number, since it is smaller than the sum of its proper divisors (2361800720).

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

1355104240 is a wasteful number, since it uses less digits than its factorization.

1355104240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78110 (or 78104 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1355104240 is about 36811.7405184813. The cubic root of 1355104240 is about 1106.6006000785.

Adding to 1355104240 its reverse (424015531), we get a palindrome (1779119771).

The spelling of 1355104240 in words is "one billion, three hundred fifty-five million, one hundred four thousand, two hundred forty".