1071449288 has 96 divisors (see below), whose sum is σ = 2533809600. Its totient is φ = 420997248.

The previous prime is 1071449287. The next prime is 1071449299. The reversal of 1071449288 is 8829441701.

It is a Cunningham number, because it is equal to 32733²-1.

It is a super-2 number, since 2×1071449288² = 2296007153511413888, which contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1071449287) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 850403 + ... + 851661.

It is an arithmetic number, because the mean of its divisors is an integer number (26393850).

Almost surely, 2^1071449288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1071449288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1266904800).

1071449288 is an abundant number, since it is smaller than the sum of its proper divisors (1462360312).

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

1071449288 is a wasteful number, since it uses less digits than its factorization.

1071449288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459 (or 1448 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 1071449288 is about 32732.9999847249. Note that the first 4 decimals coincide. The cubic root of 1071449288 is about 1023.2707031477.

The spelling of 1071449288 in words is "one billion, seventy-one million, four hundred forty-nine thousand, two hundred eighty-eight".