4020102 has 12 divisors (see below), whose sum is σ = 8710260. Its totient is φ = 1340028.

The previous prime is 4020031. The next prime is 4020119. The reversal of 4020102 is 2010204.

It is a super-2 number, since 2×4020102² = 32322440180808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111652 + ... + 111687.

It is an arithmetic number, because the mean of its divisors is an integer number (725855).

Almost surely, 2^4020102 is an apocalyptic number.

4020102 is an abundant number, since it is smaller than the sum of its proper divisors (4690158).

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

4020102 is a wasteful number, since it uses less digits than its factorization.

4020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223347 (or 223344 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 4020102 is about 2005.0192019031. The cubic root of 4020102 is about 159.0055771154.

Adding to 4020102 its reverse (2010204), we get a palindrome (6030306).

The spelling of 4020102 in words is "four million, twenty thousand, one hundred two".