1355559240 has 64 divisors (see below), whose sum is σ = 4647634560. Its totient is φ = 309841920.

The previous prime is 1355559223. The next prime is 1355559251. The reversal of 1355559240 is 429555531.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 806041 + ... + 807720.

It is an arithmetic number, because the mean of its divisors is an integer number (72619290).

Almost surely, 2^1355559240 is an apocalyptic number.

1355559240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1355559240 is an abundant number, since it is smaller than the sum of its proper divisors (3292075320).

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

1355559240 is a wasteful number, since it uses less digits than its factorization.

1355559240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613782 (or 1613778 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 39.

The square root of 1355559240 is about 36817.9200933458. The cubic root of 1355559240 is about 1106.7244397349.

The spelling of 1355559240 in words is "one billion, three hundred fifty-five million, five hundred fifty-nine thousand, two hundred forty".