20004268402 has 16 divisors (see below), whose sum is σ = 30425232312. Its totient is φ = 9862594560.

The previous prime is 20004268393. The next prime is 20004268477. The reversal of 20004268402 is 20486240002.

20004268402 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 18439195681 + 1565072721 = 135791^2 + 39561^2 .

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, 638938 + ... + 669514.

Almost surely, 2^20004268402 is an apocalyptic number.

20004268402 is a deficient number, since it is larger than the sum of its proper divisors (10420963910).

20004268402 is a wasteful number, since it uses less digits than its factorization.

20004268402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35133.

The product of its (nonzero) digits is 6144, while the sum is 28.

The spelling of 20004268402 in words is "twenty billion, four million, two hundred sixty-eight thousand, four hundred two".