450690 has 32 divisors (see below), whose sum is σ = 1100736. Its totient is φ = 118080.

The previous prime is 450677. The next prime is 450691. The reversal of 450690 is 96054.

It is a super-2 number, since 2×450690² = 406242952200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 450690.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2400 + ... + 2580.

It is an arithmetic number, because the mean of its divisors is an integer number (34398).

2⁴⁵⁰⁶⁹⁰ is an apocalyptic number.

450690 is an abundant number, since it is smaller than the sum of its proper divisors (650046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

450690 is a wasteful number, since it uses less digits than its factorization.

450690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 450690 is about 671.3344918891. The cubic root of 450690 is about 76.6700901643.

The spelling of 450690 in words is "four hundred fifty thousand, six hundred ninety".