405248015 has 8 divisors (see below), whose sum is σ = 486446688. Its totient is φ = 324099040.

The previous prime is 405248009. The next prime is 405248029. The reversal of 405248015 is 510842504.

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

It is not a de Polignac number, because 405248015 - 2⁶ = 405247951 is a prime.

It is a super-2 number, since 2×405248015² = 328451907322880450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8825 + ... + 29805.

It is an arithmetic number, because the mean of its divisors is an integer number (60805836).

Almost surely, 2^405248015 is an apocalyptic number.

405248015 is a deficient number, since it is larger than the sum of its proper divisors (81198673).

405248015 is a wasteful number, since it uses less digits than its factorization.

405248015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24849.

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 405248015 is about 20130.7728366300. The cubic root of 405248015 is about 740.0146180458.

The spelling of 405248015 in words is "four hundred five million, two hundred forty-eight thousand, fifteen".