4020523002 has 24 divisors (see below), whose sum is σ = 8841152736. Its totient is φ = 1320171336.

The previous prime is 4020522997. The next prime is 4020523007. The reversal of 4020523002 is 2003250204.

It is an interprime number because it is at equal distance from previous prime (4020522997) and next prime (4020523007).

It is a super-2 number, since 2×4020523002² = 32329210419222184008, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (4020523007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1665678 + ... + 1668089.

It is an arithmetic number, because the mean of its divisors is an integer number (368381364).

Almost surely, 2^4020523002 is an apocalyptic number.

4020523002 is an abundant number, since it is smaller than the sum of its proper divisors (4820629734).

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

4020523002 is a wasteful number, since it uses less digits than its factorization.

4020523002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333842 (or 3333839 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 4020523002 is about 63407.5941981716. The cubic root of 4020523002 is about 1590.1112749939. Note that the first 3 decimals are identical.

Adding to 4020523002 its reverse (2003250204), we get a palindrome (6023773206).

The spelling of 4020523002 in words is "four billion, twenty million, five hundred twenty-three thousand, two".