405380255 has 8 divisors (see below), whose sum is σ = 555950112. Its totient is φ = 277975008.

The previous prime is 405380233. The next prime is 405380281. The reversal of 405380255 is 552083504.

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 405380255 - 2⁶ = 405380191 is a prime.

It is a super-2 number, since 2×405380255² = 328666302287730050, which contains 22 as substring.

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, 5791112 + ... + 5791181.

It is an arithmetic number, because the mean of its divisors is an integer number (69493764).

Almost surely, 2^405380255 is an apocalyptic number.

405380255 is a deficient number, since it is larger than the sum of its proper divisors (150569857).

405380255 is a wasteful number, since it uses less digits than its factorization.

405380255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11582305.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 405380255 is about 20134.0570923994. The cubic root of 405380255 is about 740.0951028246.

The spelling of 405380255 in words is "four hundred five million, three hundred eighty thousand, two hundred fifty-five".