1056267870 has 128 divisors (see below), whose sum is σ = 3127818240. Its totient is φ = 222942720.

The previous prime is 1056267869. The next prime is 1056267881. The reversal of 1056267870 is 787626501.

It is a super-3 number, since 3×1056267870³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 136300 + ... + 143840.

It is an arithmetic number, because the mean of its divisors is an integer number (24436080).

Almost surely, 2^1056267870 is an apocalyptic number.

1056267870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1056267870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1563909120).

1056267870 is an abundant number, since it is smaller than the sum of its proper divisors (2071550370).

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

1056267870 is a wasteful number, since it uses less digits than its factorization.

1056267870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7610.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 1056267870 is about 32500.2749219141. The cubic root of 1056267870 is about 1018.4147713562.

The spelling of 1056267870 in words is "one billion, fifty-six million, two hundred sixty-seven thousand, eight hundred seventy".