140240450 has 36 divisors (see below), whose sum is σ = 303439842. Its totient is φ = 48081600.

The previous prime is 140240449. The next prime is 140240479. The reversal of 140240450 is 54042041.

It can be written as a sum of positive squares in 3 ways, for example, as 83192641 + 57047809 = 9121^2 + 7553^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 26171 + ... + 31070.

Almost surely, 2^140240450 is an apocalyptic number.

140240450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140240450 is an abundant number, since it is smaller than the sum of its proper divisors (163199392).

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

140240450 is a wasteful number, since it uses less digits than its factorization.

140240450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57267 (or 57255 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 140240450 is about 11842.3160741470. The cubic root of 140240450 is about 519.5465104474.

Adding to 140240450 its reverse (54042041), we get a palindrome (194282491).

The spelling of 140240450 in words is "one hundred forty million, two hundred forty thousand, four hundred fifty".