409245486 has 64 divisors (see below), whose sum is σ = 926553600. Its totient is φ = 119560320.

The previous prime is 409245481. The next prime is 409245511. The reversal of 409245486 is 684542904.

It is a super-2 number, since 2×409245486² = 334963735622752392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409245481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 266541 + ... + 268071.

It is an arithmetic number, because the mean of its divisors is an integer number (14477400).

Almost surely, 2^409245486 is an apocalyptic number.

409245486 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 409245486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (463276800).

409245486 is an abundant number, since it is smaller than the sum of its proper divisors (517308114).

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

409245486 is a wasteful number, since it uses less digits than its factorization.

409245486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721.

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 409245486 is about 20229.8167564612. The cubic root of 409245486 is about 742.4398926504.

The spelling of 409245486 in words is "four hundred nine million, two hundred forty-five thousand, four hundred eighty-six".