1042821980 has 12 divisors (see below), whose sum is σ = 2189926200. Its totient is φ = 417128784.

The previous prime is 1042821977. The next prime is 1042822021. The reversal of 1042821980 is 891282401.

1042821980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1042821980² = 2174955363942240800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1042821980.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26070530 + ... + 26070569.

It is an arithmetic number, because the mean of its divisors is an integer number (182493850).

Almost surely, 2^1042821980 is an apocalyptic number.

1042821980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042821980 is an abundant number, since it is smaller than the sum of its proper divisors (1147104220).

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

1042821980 is a wasteful number, since it uses less digits than its factorization.

1042821980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52141108 (or 52141106 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 1042821980 is about 32292.7542956621. The cubic root of 1042821980 is about 1014.0749594133.

The spelling of 1042821980 in words is "one billion, forty-two million, eight hundred twenty-one thousand, nine hundred eighty".