20424606402 has 16 divisors (see below), whose sum is σ = 40903183872. Its totient is φ = 6799206960.

The previous prime is 20424606373. The next prime is 20424606431. The reversal of 20424606402 is 20460642402.

It is an interprime number because it is at equal distance from previous prime (20424606373) and next prime (20424606431).

It is a self number, because there is not a number n which added to its sum of digits gives 20424606402.

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, 2243874 + ... + 2252957.

It is an arithmetic number, because the mean of its divisors is an integer number (2556448992).

Almost surely, 2^20424606402 is an apocalyptic number.

20424606402 is an abundant number, since it is smaller than the sum of its proper divisors (20478577470).

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

20424606402 is a wasteful number, since it uses less digits than its factorization.

20424606402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4497593.

The product of its (nonzero) digits is 18432, while the sum is 30.

The spelling of 20424606402 in words is "twenty billion, four hundred twenty-four million, six hundred six thousand, four hundred two".