2454454642 has 4 divisors (see below), whose sum is σ = 3681681966. Its totient is φ = 1227227320.

The previous prime is 2454454609. The next prime is 2454454649. The reversal of 2454454642 is 2464544542.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2464544542 = 2 ⋅1232272271.

It can be written as a sum of positive squares in only one way, i.e., 2405019681 + 49434961 = 49041^2 + 7031^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2454454595 and 2454454604.

It is not an unprimeable number, because it can be changed into a prime (2454454649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613613659 + ... + 613613662.

Almost surely, 2^2454454642 is an apocalyptic number.

2454454642 is a deficient number, since it is larger than the sum of its proper divisors (1227227324).

2454454642 is a wasteful number, since it uses less digits than its factorization.

2454454642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227227323.

The product of its digits is 614400, while the sum is 40.

The square root of 2454454642 is about 49542.4529267577. The cubic root of 2454454642 is about 1348.9163030556.

The spelling of 2454454642 in words is "two billion, four hundred fifty-four million, four hundred fifty-four thousand, six hundred forty-two".