450251442 has 12 divisors (see below), whose sum is σ = 975544830. Its totient is φ = 150083808.

The previous prime is 450251411. The next prime is 450251447. The reversal of 450251442 is 244152054.

It can be written as a sum of positive squares in only one way, i.e., 296218521 + 154032921 = 17211^2 + 12411^2 .

It is a super-2 number, since 2×450251442² = 405452722046158728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (450251447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12506967 + ... + 12507002.

Almost surely, 2^450251442 is an apocalyptic number.

450251442 is an abundant number, since it is smaller than the sum of its proper divisors (525293388).

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

450251442 is a wasteful number, since it uses less digits than its factorization.

450251442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25013977 (or 25013974 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 450251442 is about 21219.1291527244. The cubic root of 450251442 is about 766.4521335044.

The spelling of 450251442 in words is "four hundred fifty million, two hundred fifty-one thousand, four hundred forty-two".