20152002 has 64 divisors (see below), whose sum is σ = 46448640. Its totient is φ = 5780544.

The previous prime is 20151991. The next prime is 20152019. The reversal of 20152002 is 20025102.

It is a super-2 number, since 2×20152002² = 812206369216008, which contains 22 as substring.

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, 84199 + ... + 84437.

It is an arithmetic number, because the mean of its divisors is an integer number (725760).

Almost surely, 2^20152002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20152002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23224320).

20152002 is an abundant number, since it is smaller than the sum of its proper divisors (26296638).

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

20152002 is a wasteful number, since it uses less digits than its factorization.

20152002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 20152002 is about 4489.0981276867. The cubic root of 20152002 is about 272.1276883902.

Adding to 20152002 its reverse (20025102), we get a palindrome (40177104).

The spelling of 20152002 in words is "twenty million, one hundred fifty-two thousand, two".