415261640 has 16 divisors (see below), whose sum is σ = 934338780. Its totient is φ = 166104640.

The previous prime is 415261597. The next prime is 415261657. The reversal of 415261640 is 46162514.

It can be written as a sum of positive squares in 2 ways, for example, as 394340164 + 20921476 = 19858^2 + 4574^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5190731 + ... + 5190810.

Almost surely, 2^415261640 is an apocalyptic number.

415261640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

415261640 is an abundant number, since it is smaller than the sum of its proper divisors (519077140).

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

415261640 is a wasteful number, since it uses less digits than its factorization.

415261640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10381552 (or 10381548 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 415261640 is about 20377.9694768640. The cubic root of 415261640 is about 746.0603132456.

The spelling of 415261640 in words is "four hundred fifteen million, two hundred sixty-one thousand, six hundred forty".