1054865280 has 128 divisors (see below), whose sum is σ = 3842772480. Its totient is φ = 241108992.

The previous prime is 1054865269. The next prime is 1054865281. The reversal of 1054865280 is 825684501.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×1054865280² = 2225481517898956800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1054865281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25804 + ... + 52683.

It is an arithmetic number, because the mean of its divisors is an integer number (30021660).

Almost surely, 2^1054865280 is an apocalyptic number.

1054865280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1054865280 is an abundant number, since it is smaller than the sum of its proper divisors (2787907200).

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

1054865280 is an equidigital number, since it uses as much as digits as its factorization.

1054865280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78516 (or 78504 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 1054865280 is about 32478.6896287396. The cubic root of 1054865280 is about 1017.9637963922.

The spelling of 1054865280 in words is "one billion, fifty-four million, eight hundred sixty-five thousand, two hundred eighty".