20122415028 has 18 divisors (see below), whose sum is σ = 50864993634. Its totient is φ = 6707471664.

The previous prime is 20122415023. The next prime is 20122415029. The reversal of 20122415028 is 82051422102.

20122415028 is a `hidden beast` number, since 201 + 22 + 415 + 0 + 28 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18908450064 + 1213964964 = 137508^2 + 34842^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 20122414992 and 20122415010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122415021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 279477951 + ... + 279478022.

Almost surely, 2^20122415028 is an apocalyptic number.

It is an amenable number.

20122415028 is an abundant number, since it is smaller than the sum of its proper divisors (30742578606).

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

20122415028 is a wasteful number, since it uses less digits than its factorization.

20122415028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558955983 (or 558955978 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The spelling of 20122415028 in words is "twenty billion, one hundred twenty-two million, four hundred fifteen thousand, twenty-eight".