450000140 has 24 divisors (see below), whose sum is σ = 959107632. Its totient is φ = 177312960.

The previous prime is 450000121. The next prime is 450000143. The reversal of 450000140 is 41000054.

It is not an unprimeable number, because it can be changed into a prime (450000143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166571 + ... + 169250.

It is an arithmetic number, because the mean of its divisors is an integer number (39962818).

Almost surely, 2^450000140 is an apocalyptic number.

It is an amenable number.

450000140 is an abundant number, since it is smaller than the sum of its proper divisors (509107492).

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

450000140 is a wasteful number, since it uses less digits than its factorization.

450000140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335897 (or 335895 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 450000140 is about 21213.2067354278. The cubic root of 450000140 is about 766.3095118627.

Adding to 450000140 its reverse (41000054), we get a palindrome (491000194).

The spelling of 450000140 in words is "four hundred fifty million, one hundred forty", and thus it is an aban number.