20275415420 has 48 divisors (see below), whose sum is σ = 45869442528. Its totient is φ = 7483726080.

The previous prime is 20275415389. The next prime is 20275415443. The reversal of 20275415420 is 2451457202.

It is a super-2 number, since 2×20275415420² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 848030 + ... + 871610.

It is an arithmetic number, because the mean of its divisors is an integer number (955613386).

Almost surely, 2^20275415420 is an apocalyptic number.

20275415420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20275415420 is an abundant number, since it is smaller than the sum of its proper divisors (25594027108).

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

20275415420 is a wasteful number, since it uses less digits than its factorization.

20275415420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26910 (or 26908 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 32.

The spelling of 20275415420 in words is "twenty billion, two hundred seventy-five million, four hundred fifteen thousand, four hundred twenty".