406655457 has 8 divisors (see below), whose sum is σ = 583915584. Its totient is φ = 250249488.

The previous prime is 406655449. The next prime is 406655467. The reversal of 406655457 is 754556604.

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

It is not a de Polignac number, because 406655457 - 2³ = 406655449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (406655467) by changing a digit.

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, 5213493 + ... + 5213570.

It is an arithmetic number, because the mean of its divisors is an integer number (72989448).

Almost surely, 2^406655457 is an apocalyptic number.

It is an amenable number.

406655457 is a deficient number, since it is larger than the sum of its proper divisors (177260127).

406655457 is a wasteful number, since it uses less digits than its factorization.

406655457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10427079.

The product of its (nonzero) digits is 504000, while the sum is 42.

The square root of 406655457 is about 20165.7000126452. The cubic root of 406655457 is about 740.8703279497.

The spelling of 406655457 in words is "four hundred six million, six hundred fifty-five thousand, four hundred fifty-seven".