405455983 has 8 divisors (see below), whose sum is σ = 423364608. Its totient is φ = 387570744.

The previous prime is 405455971. The next prime is 405455993. The reversal of 405455983 is 389554504.

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 405455983 - 2⁵ = 405455951 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 (405455903) 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, 36066 + ... + 45952.

It is an arithmetic number, because the mean of its divisors is an integer number (52920576).

Almost surely, 2^405455983 is an apocalyptic number.

405455983 is a deficient number, since it is larger than the sum of its proper divisors (17908625).

405455983 is a wasteful number, since it uses less digits than its factorization.

405455983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11693.

The product of its (nonzero) digits is 432000, while the sum is 43.

The square root of 405455983 is about 20135.9375992279. The cubic root of 405455983 is about 740.1411850167.

The spelling of 405455983 in words is "four hundred five million, four hundred fifty-five thousand, nine hundred eighty-three".