1072289712 has 80 divisors (see below), whose sum is σ = 3025306368. Its totient is φ = 325274880.

The previous prime is 1072289689. The next prime is 1072289717. The reversal of 1072289712 is 2179822701.

It is a super-2 number, since 2×1072289712² = 2299610452922085888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (1072289717) 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, 32203 + ... + 56405.

Almost surely, 2^1072289712 is an apocalyptic number.

1072289712 is a gapful number since it is divisible by the number (12) 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 1072289712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1512653184).

1072289712 is an abundant number, since it is smaller than the sum of its proper divisors (1953016656).

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

1072289712 is a wasteful number, since it uses less digits than its factorization.

1072289712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24298 (or 24292 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 39.

The square root of 1072289712 is about 32745.8350328710. The cubic root of 1072289712 is about 1023.5381777773.

The spelling of 1072289712 in words is "one billion, seventy-two million, two hundred eighty-nine thousand, seven hundred twelve".