1355449782 has 32 divisors (see below), whose sum is σ = 2760791040. Its totient is φ = 443555840.

The previous prime is 1355449747. The next prime is 1355449783. The reversal of 1355449782 is 2879445531.

It is a super-2 number, since 2×1355449782² = 3674488223047695048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355449783) 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, 95158 + ... + 108470.

It is an arithmetic number, because the mean of its divisors is an integer number (86274720).

Almost surely, 2^1355449782 is an apocalyptic number.

1355449782 is an abundant number, since it is smaller than the sum of its proper divisors (1405341258).

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

1355449782 is a wasteful number, since it uses less digits than its factorization.

1355449782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13628.

The product of its digits is 1209600, while the sum is 48.

The square root of 1355449782 is about 36816.4335861039. The cubic root of 1355449782 is about 1106.6946505278.

It can be divided in two parts, 13554 and 49782, that added together give a palindrome (63336).

The spelling of 1355449782 in words is "one billion, three hundred fifty-five million, four hundred forty-nine thousand, seven hundred eighty-two".