140052660 has 144 divisors (see below), whose sum is σ = 437584896. Its totient is φ = 33440000.

The previous prime is 140052641. The next prime is 140052673. The reversal of 140052660 is 66250041.

It is a super-2 number, since 2×140052660² = 39229495146151200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 140052660.

It is a congruent number.

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, 733165 + ... + 733355.

It is an arithmetic number, because the mean of its divisors is an integer number (3038784).

Almost surely, 2^140052660 is an apocalyptic number.

140052660 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 140052660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218792448).

140052660 is an abundant number, since it is smaller than the sum of its proper divisors (297532236).

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

140052660 is a wasteful number, since it uses less digits than its factorization.

140052660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 140052660 is about 11834.3846481344. The cubic root of 140052660 is about 519.3145060096.

The spelling of 140052660 in words is "one hundred forty million, fifty-two thousand, six hundred sixty".