1355803728 has 40 divisors (see below), whose sum is σ = 3597159648. Its totient is φ = 439719552.

The previous prime is 1355803711. The next prime is 1355803739. The reversal of 1355803728 is 8273085531.

It is a self number, because there is not a number n which added to its sum of digits gives 1355803728.

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, 379926 + ... + 383477.

Almost surely, 2^1355803728 is an apocalyptic number.

It is an amenable number.

1355803728 is an abundant number, since it is smaller than the sum of its proper divisors (2241355920).

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

1355803728 is a wasteful number, since it uses less digits than its factorization.

1355803728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763451 (or 763445 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 1355803728 is about 36821.2401746601. The cubic root of 1355803728 is about 1106.7909718276.

It can be divided in two parts, 1355803 and 728, that added together give a palindrome (1356531).

The spelling of 1355803728 in words is "one billion, three hundred fifty-five million, eight hundred three thousand, seven hundred twenty-eight".