1042698880 has 128 divisors (see below), whose sum is σ = 2590963200. Its totient is φ = 400957440.

The previous prime is 1042698869. The next prime is 1042698889. The reversal of 1042698880 is 888962401.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 1042698880.

It is not an unprimeable number, because it can be changed into a prime (1042698889) 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, 2072709 + ... + 2073211.

It is an arithmetic number, because the mean of its divisors is an integer number (20241900).

Almost surely, 2^1042698880 is an apocalyptic number.

1042698880 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 1042698880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1295481600).

1042698880 is an abundant number, since it is smaller than the sum of its proper divisors (1548264320).

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

1042698880 is an equidigital number, since it uses as much as digits as its factorization.

1042698880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 46.

The square root of 1042698880 is about 32290.8482390909. The cubic root of 1042698880 is about 1014.0350556579.

The spelling of 1042698880 in words is "one billion, forty-two million, six hundred ninety-eight thousand, eight hundred eighty".