1002072890 has 32 divisors (see below), whose sum is σ = 2219978880. Its totient is φ = 317139264.

The previous prime is 1002072857. The next prime is 1002073019. The reversal of 1002072890 is 982702001.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 549680 + ... + 551499.

It is an arithmetic number, because the mean of its divisors is an integer number (69374340).

Almost surely, 2^1002072890 is an apocalyptic number.

1002072890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1002072890 is an abundant number, since it is smaller than the sum of its proper divisors (1217905990).

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

1002072890 is a wasteful number, since it uses less digits than its factorization.

1002072890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101206.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1002072890 is about 31655.5349030782. The cubic root of 1002072890 is about 1000.6904864521.

Adding to 1002072890 its reverse (982702001), we get a palindrome (1984774891).

The spelling of 1002072890 in words is "one billion, two million, seventy-two thousand, eight hundred ninety".