1055442900 has 36 divisors (see below), whose sum is σ = 3053748992. Its totient is φ = 281451360.

The previous prime is 1055442887. The next prime is 1055442937. The reversal of 1055442900 is 92445501.

It is a super-2 number, since 2×1055442900² = 2227919430320820000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1758772 + ... + 1759371.

Almost surely, 2^1055442900 is an apocalyptic number.

1055442900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1055442900 is an abundant number, since it is smaller than the sum of its proper divisors (1998306092).

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

1055442900 is a wasteful number, since it uses less digits than its factorization.

1055442900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3518160 (or 3518153 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1055442900 is about 32487.5807040167. The cubic root of 1055442900 is about 1018.1495670202.

The spelling of 1055442900 in words is "one billion, fifty-five million, four hundred forty-two thousand, nine hundred".