1000340880 has 720 divisors, whose sum is σ = 4286600640. Its totient is φ = 191600640.

The previous prime is 1000340857. The next prime is 1000340893. The reversal of 1000340880 is 880430001.

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 1000340880.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 27036222 + ... + 27036258.

It is an arithmetic number, because the mean of its divisors is an integer number (5953612).

Almost surely, 2^1000340880 is an apocalyptic number.

1000340880 is a gapful number since it is divisible by the number (10) 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 1000340880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2143300320).

1000340880 is an abundant number, since it is smaller than the sum of its proper divisors (3286259760).

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

1000340880 is a wasteful number, since it uses less digits than its factorization.

1000340880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 1000340880 is about 31628.1659284885. The cubic root of 1000340880 is about 1000.1136137581.

Adding to 1000340880 its reverse (880430001), we get a palindrome (1880770881).

The spelling of 1000340880 in words is "one billion, three hundred forty thousand, eight hundred eighty".