408250613 has 8 divisors (see below), whose sum is σ = 417737400. Its totient is φ = 398854080.

The previous prime is 408250567. The next prime is 408250649. The reversal of 408250613 is 316052804.

It can be written as a sum of positive squares in 4 ways, for example, as 45995524 + 362255089 = 6782^2 + 19033^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 408250613 - 2¹⁶ = 408185077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408250013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13370 + ... + 31547.

It is an arithmetic number, because the mean of its divisors is an integer number (52217175).

Almost surely, 2^408250613 is an apocalyptic number.

It is an amenable number.

408250613 is a deficient number, since it is larger than the sum of its proper divisors (9486787).

408250613 is a wasteful number, since it uses less digits than its factorization.

408250613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45127.

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

The square root of 408250613 is about 20205.2125205354. The cubic root of 408250613 is about 741.8377823638.

The spelling of 408250613 in words is "four hundred eight million, two hundred fifty thousand, six hundred thirteen".