415420020 has 72 divisors (see below), whose sum is σ = 1314907776. Its totient is φ = 105961152.

The previous prime is 415420013. The next prime is 415420039. The reversal of 415420020 is 20024514.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 415419975 and 415420002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46032 + ... + 54311.

It is an arithmetic number, because the mean of its divisors is an integer number (18262608).

Almost surely, 2^415420020 is an apocalyptic number.

It is an amenable number.

415420020 is an abundant number, since it is smaller than the sum of its proper divisors (899487756).

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

415420020 is a wasteful number, since it uses less digits than its factorization.

415420020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100381 (or 100376 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 415420020 is about 20381.8551658086. The cubic root of 415420020 is about 746.1551498515.

Adding to 415420020 its reverse (20024514), we get a palindrome (435444534).

The spelling of 415420020 in words is "four hundred fifteen million, four hundred twenty thousand, twenty".