1055658380 has 48 divisors (see below), whose sum is σ = 2537027136. Its totient is φ = 361447680.

The previous prime is 1055658371. The next prime is 1055658397. The reversal of 1055658380 is 838565501.

1055658380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1055658380² = 2228829230528448800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106850 + ... + 116310.

It is an arithmetic number, because the mean of its divisors is an integer number (52854732).

Almost surely, 2^1055658380 is an apocalyptic number.

1055658380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1055658380 is an abundant number, since it is smaller than the sum of its proper divisors (1481368756).

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

1055658380 is a wasteful number, since it uses less digits than its factorization.

1055658380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10274 (or 10272 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 41.

The square root of 1055658380 is about 32490.8968789721. The cubic root of 1055658380 is about 1018.2188510272.

The spelling of 1055658380 in words is "one billion, fifty-five million, six hundred fifty-eight thousand, three hundred eighty".