1070656840 has 128 divisors (see below), whose sum is σ = 2801433600. Its totient is φ = 364158720.

The previous prime is 1070656837. The next prime is 1070656849. The reversal of 1070656840 is 486560701.

It is a super-2 number, since 2×1070656840² = 2292612138077571200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1070656840.

It is not an unprimeable number, because it can be changed into a prime (1070656849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 693109 + ... + 694651.

It is an arithmetic number, because the mean of its divisors is an integer number (21886200).

Almost surely, 2^1070656840 is an apocalyptic number.

1070656840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1070656840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1400716800).

1070656840 is an abundant number, since it is smaller than the sum of its proper divisors (1730776760).

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

1070656840 is a wasteful number, since it uses less digits than its factorization.

1070656840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667 (or 1663 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 1070656840 is about 32720.8930195983. The cubic root of 1070656840 is about 1023.0183692837.

The spelling of 1070656840 in words is "one billion, seventy million, six hundred fifty-six thousand, eight hundred forty".