1055013440 has 56 divisors (see below), whose sum is σ = 2705511480. Its totient is φ = 389541888.

The previous prime is 1055013433. The next prime is 1055013451. The reversal of 1055013440 is 443105501.

It can be written as a sum of positive squares in 4 ways, for example, as 4734976 + 1050278464 = 2176^2 + 32408^2 .

It is a super-2 number, since 2×1055013440² = 2226106717161267200, which contains 22 as substring.

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, 122645 + ... + 130964.

It is an arithmetic number, because the mean of its divisors is an integer number (48312705).

Almost surely, 2^1055013440 is an apocalyptic number.

1055013440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1055013440 is an abundant number, since it is smaller than the sum of its proper divisors (1650498040).

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

1055013440 is a wasteful number, since it uses less digits than its factorization.

1055013440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253639 (or 253629 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1055013440 is about 32480.9704288526. The cubic root of 1055013440 is about 1018.0114531747.

Adding to 1055013440 its reverse (443105501), we get a palindrome (1498118941).

The spelling of 1055013440 in words is "one billion, fifty-five million, thirteen thousand, four hundred forty".