1055448220 has 24 divisors (see below), whose sum is σ = 2217683664. Its totient is φ = 421942656.

The previous prime is 1055448209. The next prime is 1055448257. The reversal of 1055448220 is 228445501.

It is a super-2 number, since 2×1055448220² = 2227941890202336800, which contains 22 as substring.

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, 24304 + ... + 51976.

It is an arithmetic number, because the mean of its divisors is an integer number (92403486).

Almost surely, 2^1055448220 is an apocalyptic number.

1055448220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1055448220 is an abundant number, since it is smaller than the sum of its proper divisors (1162235444).

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

1055448220 is a wasteful number, since it uses less digits than its factorization.

1055448220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29589 (or 29587 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 1055448220 is about 32487.6625813554. The cubic root of 1055448220 is about 1018.1512776911.

The spelling of 1055448220 in words is "one billion, fifty-five million, four hundred forty-eight thousand, two hundred twenty".