1002022902 has 12 divisors (see below), whose sum is σ = 2171049660. Its totient is φ = 334007628.

The previous prime is 1002022897. The next prime is 1002022913. The reversal of 1002022902 is 2092202001.

It is a super-2 number, since 2×1002022902² = 2008099792265003208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 55667939 = 1002022902 / (1 + 0 + 0 + 2 + 0 + 2 + 2 + 9 + 0 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27833952 + ... + 27833987.

It is an arithmetic number, because the mean of its divisors is an integer number (180920805).

Almost surely, 2^1002022902 is an apocalyptic number.

1002022902 is an abundant number, since it is smaller than the sum of its proper divisors (1169026758).

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

1002022902 is a wasteful number, since it uses less digits than its factorization.

1002022902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55667947 (or 55667944 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1002022902 is about 31654.7453314665. The cubic root of 1002022902 is about 1000.6738464956.

Adding to 1002022902 its reverse (2092202001), we get a palindrome (3094224903).

The spelling of 1002022902 in words is "one billion, two million, twenty-two thousand, nine hundred two".