453978 has 32 divisors (see below), whose sum is σ = 1153920. Its totient is φ = 129600.

The previous prime is 453977. The next prime is 453983. The reversal of 453978 is 879354.

It is a Curzon number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (453977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223 + ... + 978.

It is an arithmetic number, because the mean of its divisors is an integer number (36060).

2⁴⁵³⁹⁷⁸ is an apocalyptic number.

453978 is an abundant number, since it is smaller than the sum of its proper divisors (699942).

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

453978 is a wasteful number, since it uses less digits than its factorization.

453978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219 (or 1213 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 453978 is about 673.7788954843. The cubic root of 453978 is about 76.8560869595.

It can be divided in two parts, 453 and 978, that added together give a triangular number (1431 = T₅₃).

The spelling of 453978 in words is "four hundred fifty-three thousand, nine hundred seventy-eight".