140266252 has 48 divisors (see below), whose sum is σ = 298142208. Its totient is φ = 56367360.

The previous prime is 140266237. The next prime is 140266279. The reversal of 140266252 is 252662041.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 140266252.

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 15 ways as a sum of consecutive naturals, for example, 221977 + ... + 222607.

It is an arithmetic number, because the mean of its divisors is an integer number (6211296).

Almost surely, 2^140266252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140266252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149071104).

140266252 is an abundant number, since it is smaller than the sum of its proper divisors (157875956).

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

140266252 is a wasteful number, since it uses less digits than its factorization.

140266252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126 (or 1124 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 140266252 is about 11843.4054224281. The cubic root of 140266252 is about 519.5783712432.

The spelling of 140266252 in words is "one hundred forty million, two hundred sixty-six thousand, two hundred fifty-two".