1002209490 has 64 divisors (see below), whose sum is σ = 2682616320. Its totient is φ = 266250240.

The previous prime is 1002209477. The next prime is 1002209501. The reversal of 1002209490 is 949022001.

1002209490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66322 + ... + 80018.

It is an arithmetic number, because the mean of its divisors is an integer number (41915880).

Almost surely, 2^1002209490 is an apocalyptic number.

1002209490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1002209490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1341308160).

1002209490 is an abundant number, since it is smaller than the sum of its proper divisors (1680406830).

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

1002209490 is a wasteful number, since it uses less digits than its factorization.

1002209490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13984 (or 13978 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1002209490 is about 31657.6924301188. The cubic root of 1002209490 is about 1000.7359549042.

The spelling of 1002209490 in words is "one billion, two million, two hundred nine thousand, four hundred ninety".