453890 has 8 divisors (see below), whose sum is σ = 817020. Its totient is φ = 181552.

The previous prime is 453889. The next prime is 453907. The reversal of 453890 is 98354.

It can be written as a sum of positive squares in 2 ways, for example, as 452929 + 961 = 673^2 + 31^2 .

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

It is a super-2 number, since 2×453890² = 412032264200, which contains 22 as substring.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22685 + ... + 22704.

2⁴⁵³⁸⁹⁰ is an apocalyptic number.

453890 is a deficient number, since it is larger than the sum of its proper divisors (363130).

453890 is a wasteful number, since it uses less digits than its factorization.

453890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45396.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 453890 is about 673.7135889976. The cubic root of 453890 is about 76.8511206596.

The spelling of 453890 in words is "four hundred fifty-three thousand, eight hundred ninety".