20403030402 has 24 divisors (see below), whose sum is σ = 44644258620. Its totient is φ = 6733672800.

The previous prime is 20403030377. The next prime is 20403030469.

20403030402 is a `hidden beast` number, since 204 + 0 + 30 + 30 + 402 = 666.

20403030402 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 12322998081 + 8080032321 = 111009^2 + 89889^2 .

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, 5609577 + ... + 5613212.

Almost surely, 2^20403030402 is an apocalyptic number.

20403030402 is an abundant number, since it is smaller than the sum of its proper divisors (24241228218).

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

20403030402 is a wasteful number, since it uses less digits than its factorization.

20403030402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11222898 (or 11222895 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

It can be divided in two parts, 204030 and 30402, that added together give a palindrome (234432).

The spelling of 20403030402 in words is "twenty billion, four hundred three million, thirty thousand, four hundred two".