415020440 has 16 divisors (see below), whose sum is σ = 933796080. Its totient is φ = 166008160.

The previous prime is 415020433. The next prime is 415020451. The reversal of 415020440 is 44020514.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5187716 + ... + 5187795.

It is an arithmetic number, because the mean of its divisors is an integer number (58362255).

Almost surely, 2^415020440 is an apocalyptic number.

415020440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

415020440 is an abundant number, since it is smaller than the sum of its proper divisors (518775640).

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

415020440 is a wasteful number, since it uses less digits than its factorization.

415020440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10375522 (or 10375518 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 415020440 is about 20372.0504613551. The cubic root of 415020440 is about 745.9158383877.

Adding to 415020440 its reverse (44020514), we get a palindrome (459040954).

The spelling of 415020440 in words is "four hundred fifteen million, twenty thousand, four hundred forty".