4021401340402 has 32 divisors (see below), whose sum is σ = 6406865942400. Its totient is φ = 1889700892800.

The previous prime is 4021401340399. The next prime is 4021401340403. The reversal of 4021401340402 is 2040431041204.

4021401340402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (4021401340403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 882124 + ... + 2970007.

It is an arithmetic number, because the mean of its divisors is an integer number (200214560700).

Almost surely, 2^{4021401340402} is an apocalyptic number.

4021401340402 is a deficient number, since it is larger than the sum of its proper divisors (2385464601998).

4021401340402 is a wasteful number, since it uses less digits than its factorization.

4021401340402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3852642.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 4021401340402 its reverse (2040431041204), we get a palindrome (6061832381606).

The spelling of 4021401340402 in words is "four trillion, twenty-one billion, four hundred one million, three hundred forty thousand, four hundred two".