1002022272 has 64 divisors (see below), whose sum is σ = 2957367600. Its totient is φ = 334006272.

The previous prime is 1002022267. The next prime is 1002022283. The reversal of 1002022272 is 2722202001.

It is a happy number.

1002022272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141513 + ... + 148424.

Almost surely, 2^1002022272 is an apocalyptic number.

1002022272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1002022272 is an abundant number, since it is smaller than the sum of its proper divisors (1955345328).

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

1002022272 is an equidigital number, since it uses as much as digits as its factorization.

1002022272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289960 (or 289942 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 1002022272 is about 31654.7353803503. The cubic root of 1002022272 is about 1000.6736367783.

Adding to 1002022272 its reverse (2722202001), we get a palindrome (3724224273).

The spelling of 1002022272 in words is "one billion, two million, twenty-two thousand, two hundred seventy-two".