1072771056 has 60 divisors (see below), whose sum is σ = 3431167792. Its totient is φ = 306505728.

The previous prime is 1072771033. The next prime is 1072771061. The reversal of 1072771056 is 6501772701.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1072771056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 531121 + ... + 533136.

Almost surely, 2^1072771056 is an apocalyptic number.

1072771056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1072771056 is an abundant number, since it is smaller than the sum of its proper divisors (2358396736).

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

1072771056 is a wasteful number, since it uses less digits than its factorization.

1072771056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064278 (or 1064269 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 36.

The square root of 1072771056 is about 32753.1839063014. The cubic root of 1072771056 is about 1023.6913081158.

The spelling of 1072771056 in words is "one billion, seventy-two million, seven hundred seventy-one thousand, fifty-six".