1055221346 has 32 divisors (see below), whose sum is σ = 1671280128. Its totient is φ = 499125760.

The previous prime is 1055221337. The next prime is 1055221379. The reversal of 1055221346 is 6431225501.

It is a super-3 number, since 3×1055221346³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 434291 + ... + 436713.

It is an arithmetic number, because the mean of its divisors is an integer number (52227504).

Almost surely, 2^1055221346 is an apocalyptic number.

1055221346 is a deficient number, since it is larger than the sum of its proper divisors (616058782).

1055221346 is a wasteful number, since it uses less digits than its factorization.

1055221346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2626.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1055221346 is about 32484.1706989728. The cubic root of 1055221346 is about 1018.0783201863.

Adding to 1055221346 its reverse (6431225501), we get a palindrome (7486446847).

The spelling of 1055221346 in words is "one billion, fifty-five million, two hundred twenty-one thousand, three hundred forty-six".