405608375 has 8 divisors (see below), whose sum is σ = 506199408. Its totient is φ = 324486600.

The previous prime is 405608369. The next prime is 405608383. The reversal of 405608375 is 573806504.

It is not a de Polignac number, because 405608375 - 2¹⁰ = 405607351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1622309 + ... + 1622558.

It is an arithmetic number, because the mean of its divisors is an integer number (63274926).

Almost surely, 2^405608375 is an apocalyptic number.

405608375 is a deficient number, since it is larger than the sum of its proper divisors (100591033).

405608375 is an equidigital number, since it uses as much as digits as its factorization.

405608375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3244882 (or 3244872 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 405608375 is about 20139.7213237919. The cubic root of 405608375 is about 740.2339015894.

The spelling of 405608375 in words is "four hundred five million, six hundred eight thousand, three hundred seventy-five".