20504492242 has 32 divisors (see below), whose sum is σ = 34064819712. Its totient is φ = 9195125184.

The previous prime is 20504492221. The next prime is 20504492263. The reversal of 20504492242 is 24229440502.

It is an interprime number because it is at equal distance from previous prime (20504492221) and next prime (20504492263).

It is a junction number, because it is equal to n+sod(n) for n = 20504492198 and 20504492207.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 700423 + ... + 729109.

It is an arithmetic number, because the mean of its divisors is an integer number (1064525616).

Almost surely, 2^20504492242 is an apocalyptic number.

20504492242 is a deficient number, since it is larger than the sum of its proper divisors (13560327470).

20504492242 is a wasteful number, since it uses less digits than its factorization.

20504492242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29482.

The product of its (nonzero) digits is 46080, while the sum is 34.

The spelling of 20504492242 in words is "twenty billion, five hundred four million, four hundred ninety-two thousand, two hundred forty-two".