450143252 has 48 divisors (see below), whose sum is σ = 879648000. Its totient is φ = 200230272.

The previous prime is 450143203. The next prime is 450143303. The reversal of 450143252 is 252341054.

It is a happy number.

It is a super-2 number, since 2×450143252² = 405257894642271008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162374 + ... + 165122.

It is an arithmetic number, because the mean of its divisors is an integer number (18326000).

Almost surely, 2^450143252 is an apocalyptic number.

It is an amenable number.

450143252 is a deficient number, since it is larger than the sum of its proper divisors (429504748).

450143252 is a wasteful number, since it uses less digits than its factorization.

450143252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2880 (or 2878 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 450143252 is about 21216.5796489444. The cubic root of 450143252 is about 766.3907388471.

The spelling of 450143252 in words is "four hundred fifty million, one hundred forty-three thousand, two hundred fifty-two".