450002142 has 40 divisors (see below), whose sum is σ = 1032946992. Its totient is φ = 146340000.

The previous prime is 450002129. The next prime is 450002143. The reversal of 450002142 is 241200054.

450002142 is a `hidden beast` number, since 450 + 0 + 0 + 214 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450002143) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 27234 + ... + 40517.

Almost surely, 2^450002142 is an apocalyptic number.

450002142 is an abundant number, since it is smaller than the sum of its proper divisors (582944850).

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

450002142 is a wasteful number, since it uses less digits than its factorization.

450002142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67806 (or 67797 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 450002142 is about 21213.2539229605. The cubic root of 450002142 is about 766.3106482693.

Adding to 450002142 its reverse (241200054), we get a palindrome (691202196).

The spelling of 450002142 in words is "four hundred fifty million, two thousand, one hundred forty-two".