415656240 has 80 divisors (see below), whose sum is σ = 1300437600. Its totient is φ = 109817856.

The previous prime is 415656193. The next prime is 415656271. The reversal of 415656240 is 42656514.

It is a tau number, because it is divible by the number of its divisors (80).

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, 18216 + ... + 34104.

It is an arithmetic number, because the mean of its divisors is an integer number (16255470).

Almost surely, 2^415656240 is an apocalyptic number.

415656240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 415656240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (650218800).

415656240 is an abundant number, since it is smaller than the sum of its proper divisors (884781360).

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

415656240 is a wasteful number, since it uses less digits than its factorization.

415656240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16014 (or 16008 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 415656240 is about 20387.6492023970. The cubic root of 415656240 is about 746.2965516162.

The spelling of 415656240 in words is "four hundred fifteen million, six hundred fifty-six thousand, two hundred forty".