4020204000402 has 24 divisors (see below), whose sum is σ = 8800240375836. Its totient is φ = 1326252865536.

The previous prime is 4020204000377. The next prime is 4020204000473. The reversal of 4020204000402 is 2040004020204.

4020204000402 is a `hidden beast` number, since 40 + 20 + 204 + 0 + 0 + 0 + 402 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3515591250081 + 504612750321 = 1874991^2 + 710361^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1151259423 + ... + 1151262914.

Almost surely, 2^{4020204000402} is an apocalyptic number.

4020204000402 is an abundant number, since it is smaller than the sum of its proper divisors (4780036375434).

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

4020204000402 is a wasteful number, since it uses less digits than its factorization.

4020204000402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302522442 (or 2302522439 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 4020204000402 its reverse (2040004020204), we get a palindrome (6060208020606).

The spelling of 4020204000402 in words is "four trillion, twenty billion, two hundred four million, four hundred two", and thus it is an aban number.