415220440 has 32 divisors (see below), whose sum is σ = 948196080. Its totient is φ = 163608192.

The previous prime is 415220411. The next prime is 415220459. The reversal of 415220440 is 44022514.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74787 + ... + 80146.

Almost surely, 2^415220440 is an apocalyptic number.

415220440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

415220440 is an abundant number, since it is smaller than the sum of its proper divisors (532975640).

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

415220440 is a wasteful number, since it uses less digits than its factorization.

415220440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155011 (or 155007 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 415220440 is about 20376.9585561732. The cubic root of 415220440 is about 746.0356390816.

Adding to 415220440 its reverse (44022514), we get a palindrome (459242954).

The spelling of 415220440 in words is "four hundred fifteen million, two hundred twenty thousand, four hundred forty".