409061568 has 28 divisors (see below), whose sum is σ = 1082309240. Its totient is φ = 136353792.

The previous prime is 409061563. The next prime is 409061581. The reversal of 409061568 is 865160904.

It is not an unprimeable number, because it can be changed into a prime (409061561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1065073 + ... + 1065456.

Almost surely, 2^409061568 is an apocalyptic number.

409061568 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

409061568 is an abundant number, since it is smaller than the sum of its proper divisors (673247672).

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

409061568 is a wasteful number, since it uses less digits than its factorization.

409061568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130544 (or 2130534 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 409061568 is about 20225.2705297111. The cubic root of 409061568 is about 742.3286566277.

The spelling of 409061568 in words is "four hundred nine million, sixty-one thousand, five hundred sixty-eight".