451606 has 8 divisors (see below), whose sum is σ = 680400. Its totient is φ = 224808.

The previous prime is 451601. The next prime is 451609. The reversal of 451606 is 606154.

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

It is a super-3 number, since 3×451606³ = 276312393332559048, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375 + ... + 1021.

It is an arithmetic number, because the mean of its divisors is an integer number (85050).

2⁴⁵¹⁶⁰⁶ is an apocalyptic number.

451606 is a deficient number, since it is larger than the sum of its proper divisors (228794).

451606 is a wasteful number, since it uses less digits than its factorization.

451606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 451606 is about 672.0163688483. The cubic root of 451606 is about 76.7219974450.

Subtracting from 451606 its sum of digits (22), we obtain a square (451584 = 672²).

The spelling of 451606 in words is "four hundred fifty-one thousand, six hundred six".