20437002402 has 16 divisors (see below), whose sum is σ = 42192521472. Its totient is φ = 6592581360.

The previous prime is 20437002379. The next prime is 20437002419. The reversal of 20437002402 is 20420073402.

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, 54937993 + ... + 54938364.

It is an arithmetic number, because the mean of its divisors is an integer number (2637032592).

Almost surely, 2^20437002402 is an apocalyptic number.

20437002402 is an abundant number, since it is smaller than the sum of its proper divisors (21755519070).

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

20437002402 is a wasteful number, since it uses less digits than its factorization.

20437002402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109876393.

The product of its (nonzero) digits is 2688, while the sum is 24.

Adding to 20437002402 its reverse (20420073402), we get a palindrome (40857075804).

The spelling of 20437002402 in words is "twenty billion, four hundred thirty-seven million, two thousand, four hundred two".