1081970736 has 160 divisors (see below), whose sum is σ = 3527774208. Its totient is φ = 277566720.

The previous prime is 1081970707. The next prime is 1081970749. The reversal of 1081970736 is 6370791801.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 305005 + ... + 308531.

Almost surely, 2^1081970736 is an apocalyptic number.

1081970736 is a gapful number since it is divisible by the number (16) 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 1081970736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1763887104).

1081970736 is an abundant number, since it is smaller than the sum of its proper divisors (2445803472).

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

1081970736 is a wasteful number, since it uses less digits than its factorization.

1081970736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3639 (or 3633 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 1081970736 is about 32893.3235778934. The cubic root of 1081970736 is about 1026.6092464279.

The spelling of 1081970736 in words is "one billion, eighty-one million, nine hundred seventy thousand, seven hundred thirty-six".