456666406 has 16 divisors (see below), whose sum is σ = 824060160. Its totient is φ = 185413320.

The previous prime is 456666389. The next prime is 456666421. The reversal of 456666406 is 604666654.

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, 858130 + ... + 858661.

It is an arithmetic number, because the mean of its divisors is an integer number (51503760).

Almost surely, 2^456666406 is an apocalyptic number.

456666406 is a deficient number, since it is larger than the sum of its proper divisors (367393754).

456666406 is a wasteful number, since it uses less digits than its factorization.

456666406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716819.

The product of its (nonzero) digits is 622080, while the sum is 43.

The square root of 456666406 is about 21369.7544674711. The cubic root of 456666406 is about 770.0749946633.

It can be divided in two parts, 456666 and 406, that multiplied together give a triangular number (185406396 = T₁₉₂₅₆).

The spelling of 456666406 in words is "four hundred fifty-six million, six hundred sixty-six thousand, four hundred six".