454528642 has 4 divisors (see below), whose sum is σ = 681792966. Its totient is φ = 227264320.

The previous prime is 454528637. The next prime is 454528649. The reversal of 454528642 is 246825454.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 279257521 + 175271121 = 16711^2 + 13239^2 .

It is a junction number, because it is equal to n+sod(n) for n = 454528595 and 454528604.

It is not an unprimeable number, because it can be changed into a prime (454528649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113632159 + ... + 113632162.

Almost surely, 2^454528642 is an apocalyptic number.

454528642 is a deficient number, since it is larger than the sum of its proper divisors (227264324).

454528642 is a wasteful number, since it uses less digits than its factorization.

454528642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227264323.

The product of its digits is 307200, while the sum is 40.

The square root of 454528642 is about 21319.6773427742. The cubic root of 454528642 is about 768.8714800246.

The spelling of 454528642 in words is "four hundred fifty-four million, five hundred twenty-eight thousand, six hundred forty-two".