1055384140 has 24 divisors (see below), whose sum is σ = 2346678432. Its totient is φ = 397320960.

The previous prime is 1055384137. The next prime is 1055384219. The reversal of 1055384140 is 414835501.

It is a super-2 number, since 2×1055384140² = 2227671365927079200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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, 1551696 + ... + 1552375.

It is an arithmetic number, because the mean of its divisors is an integer number (97778268).

Almost surely, 2^1055384140 is an apocalyptic number.

1055384140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1055384140 is an abundant number, since it is smaller than the sum of its proper divisors (1291294292).

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

1055384140 is a wasteful number, since it uses less digits than its factorization.

1055384140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3104097 (or 3104095 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 1055384140 is about 32486.6763458498. The cubic root of 1055384140 is about 1018.1306720839.

The spelling of 1055384140 in words is "one billion, fifty-five million, three hundred eighty-four thousand, one hundred forty".