2002154322 has 32 divisors (see below), whose sum is σ = 4651380864. Its totient is φ = 562665600.

The previous prime is 2002154299. The next prime is 2002154359. The reversal of 2002154322 is 2234512002.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 388179 + ... + 393302.

It is an arithmetic number, because the mean of its divisors is an integer number (145355652).

Almost surely, 2^2002154322 is an apocalyptic number.

2002154322 is an abundant number, since it is smaller than the sum of its proper divisors (2649226542).

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

2002154322 is a wasteful number, since it uses less digits than its factorization.

2002154322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781554.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 2002154322 is about 44745.4391195349. The cubic root of 2002154322 is about 1260.3732668362.

Adding to 2002154322 its reverse (2234512002), we get a palindrome (4236666324).

The spelling of 2002154322 in words is "two billion, two million, one hundred fifty-four thousand, three hundred twenty-two".