450972442 has 16 divisors (see below), whose sum is σ = 691447752. Its totient is φ = 220517440.

The previous prime is 450972439. The next prime is 450972463. The reversal of 450972442 is 244279054.

It can be written as a sum of positive squares in 4 ways, for example, as 416527281 + 34445161 = 20409^2 + 5869^2 .

It is a super-2 number, since 2×450972442² = 406752286886886728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26892 + ... + 40312.

Almost surely, 2^450972442 is an apocalyptic number.

450972442 is a deficient number, since it is larger than the sum of its proper divisors (240475310).

450972442 is a wasteful number, since it uses less digits than its factorization.

450972442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13793.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 450972442 is about 21236.1117439140. Note that the first 3 decimals coincide. The cubic root of 450972442 is about 766.8610289407.

The spelling of 450972442 in words is "four hundred fifty million, nine hundred seventy-two thousand, four hundred forty-two".