4021402102 has 16 divisors (see below), whose sum is σ = 6281445600. Its totient is φ = 1928505600.

The previous prime is 4021402067. The next prime is 4021402153. The reversal of 4021402102 is 2012041204.

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, 220827 + ... + 238342.

It is an arithmetic number, because the mean of its divisors is an integer number (392590350).

Almost surely, 2^4021402102 is an apocalyptic number.

4021402102 is a deficient number, since it is larger than the sum of its proper divisors (2260043498).

4021402102 is a wasteful number, since it uses less digits than its factorization.

4021402102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459351.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 4021402102 is about 63414.5259542323. The cubic root of 4021402102 is about 1590.2271608252.

Adding to 4021402102 its reverse (2012041204), we get a palindrome (6033443306).

The spelling of 4021402102 in words is "four billion, twenty-one million, four hundred two thousand, one hundred two".