453643474 has 4 divisors (see below), whose sum is σ = 680465214. Its totient is φ = 226821736.

The previous prime is 453643471. The next prime is 453643481. The reversal of 453643474 is 474346354.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 474346354 = 2 ⋅237173177.

It can be written as a sum of positive squares in only one way, i.e., 426133449 + 27510025 = 20643^2 + 5245^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (453643471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113410867 + ... + 113410870.

Almost surely, 2^453643474 is an apocalyptic number.

453643474 is a deficient number, since it is larger than the sum of its proper divisors (226821740).

453643474 is a wasteful number, since it uses less digits than its factorization.

453643474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226821739.

The product of its digits is 483840, while the sum is 40.

The square root of 453643474 is about 21298.9078123739. The cubic root of 453643474 is about 768.3720449008.

The spelling of 453643474 in words is "four hundred fifty-three million, six hundred forty-three thousand, four hundred seventy-four".