140252580 has 96 divisors (see below), whose sum is σ = 469929600. Its totient is φ = 34521984.

The previous prime is 140252573. The next prime is 140252599. The reversal of 140252580 is 85252041.

It is a happy number.

140252580 is a `hidden beast` number, since 1 + 402 + 5 + 258 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2970 + ... + 17009.

It is an arithmetic number, because the mean of its divisors is an integer number (4895100).

Almost surely, 2^140252580 is an apocalyptic number.

140252580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140252580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234964800).

140252580 is an abundant number, since it is smaller than the sum of its proper divisors (329677020).

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

140252580 is a wasteful number, since it uses less digits than its factorization.

140252580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20010 (or 20002 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 140252580 is about 11842.8282095114. The cubic root of 140252580 is about 519.5614892867.

The spelling of 140252580 in words is "one hundred forty million, two hundred fifty-two thousand, five hundred eighty".