1056281540 has 24 divisors (see below), whose sum is σ = 2221907352. Its totient is φ = 421804800.

The previous prime is 1056281539. The next prime is 1056281557. The reversal of 1056281540 is 451826501.

It can be written as a sum of positive squares in 4 ways, for example, as 414773956 + 641507584 = 20366^2 + 25328^2 .

It is a super-2 number, since 2×1056281540² = 2231461383489543200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1056281497 and 1056281506.

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, 31919 + ... + 55958.

It is an arithmetic number, because the mean of its divisors is an integer number (92579473).

Almost surely, 2^1056281540 is an apocalyptic number.

1056281540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1056281540 is an abundant number, since it is smaller than the sum of its proper divisors (1165625812).

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

1056281540 is a wasteful number, since it uses less digits than its factorization.

1056281540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88487 (or 88485 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 1056281540 is about 32500.4852271470. The cubic root of 1056281540 is about 1018.4191647083.

The spelling of 1056281540 in words is "one billion, fifty-six million, two hundred eighty-one thousand, five hundred forty".