1071304440 has 32 divisors (see below), whose sum is σ = 3213913680. Its totient is φ = 285681152.

The previous prime is 1071304393. The next prime is 1071304441. The reversal of 1071304440 is 444031701.

It is a super-2 number, since 2×1071304440² = 2295386406327427200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1071304440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071304441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4463649 + ... + 4463888.

Almost surely, 2^1071304440 is an apocalyptic number.

1071304440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1071304440 is an abundant number, since it is smaller than the sum of its proper divisors (2142609240).

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

1071304440 is a wasteful number, since it uses less digits than its factorization.

1071304440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8927551 (or 8927547 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 1071304440 is about 32730.7873415841. The cubic root of 1071304440 is about 1023.2245894721.

The spelling of 1071304440 in words is "one billion, seventy-one million, three hundred four thousand, four hundred forty".