1055345290 has 12 divisors (see below), whose sum is σ = 1899806454. Its totient is φ = 422097024.

The previous prime is 1055345267. The next prime is 1055345309. The reversal of 1055345290 is 925435501.

It can be written as a sum of positive squares in 3 ways, for example, as 558991449 + 496353841 = 23643^2 + 22279^2 .

It is a super-2 number, since 2×1055345290² = 2227507362250368200, which contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 97594 + ... + 107866.

Almost surely, 2^1055345290 is an apocalyptic number.

1055345290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1055345290 is a deficient number, since it is larger than the sum of its proper divisors (844461164).

1055345290 is an frugal number, since it uses more digits than its factorization.

1055345290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20553 (or 10280 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 1055345290 is about 32486.0784029098. The cubic root of 1055345290 is about 1018.1181790461.

The spelling of 1055345290 in words is "one billion, fifty-five million, three hundred forty-five thousand, two hundred ninety".