4004244020402 has 16 divisors (see below), whose sum is σ = 6361877100600. Its totient is φ = 1883699632128.

The previous prime is 4004244020353. The next prime is 4004244020437. The reversal of 4004244020402 is 2040204424004.

It can be written as a sum of positive squares in 4 ways, for example, as 3836783830441 + 167460189961 = 1958771^2 + 409219^2 .

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, 20228027 + ... + 20425022.

Almost surely, 2^{4004244020402} is an apocalyptic number.

4004244020402 is a deficient number, since it is larger than the sum of its proper divisors (2357633080198).

4004244020402 is a wasteful number, since it uses less digits than its factorization.

4004244020402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40655965.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 4004244020402 its reverse (2040204424004), we get a palindrome (6044448444406).

The spelling of 4004244020402 in words is "four trillion, four billion, two hundred forty-four million, twenty thousand, four hundred two".