140505450 has 96 divisors (see below), whose sum is σ = 359976960. Its totient is φ = 36254400.

The previous prime is 140505439. The next prime is 140505473. The reversal of 140505450 is 54505041.

It is a self number, because there is not a number n which added to its sum of digits gives 140505450.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 841267 + ... + 841433.

It is an arithmetic number, because the mean of its divisors is an integer number (3749760).

Almost surely, 2^140505450 is an apocalyptic number.

140505450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 140505450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179988480).

140505450 is an abundant number, since it is smaller than the sum of its proper divisors (219471510).

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

140505450 is a wasteful number, since it uses less digits than its factorization.

140505450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 140505450 is about 11853.4994832750. The cubic root of 140505450 is about 519.8735516012.

The spelling of 140505450 in words is "one hundred forty million, five hundred five thousand, four hundred fifty".