140534244 has 24 divisors (see below), whose sum is σ = 364348320. Its totient is φ = 46844712.

The previous prime is 140534239. The next prime is 140534249. The reversal of 140534244 is 442435041.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (140534239) and next prime (140534249).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (140534249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 650514 + ... + 650729.

It is an arithmetic number, because the mean of its divisors is an integer number (15181180).

Almost surely, 2^140534244 is an apocalyptic number.

It is an amenable number.

140534244 is an abundant number, since it is smaller than the sum of its proper divisors (223814076).

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

140534244 is a wasteful number, since it uses less digits than its factorization.

140534244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301256 (or 1301248 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 140534244 is about 11854.7139990807. The cubic root of 140534244 is about 519.9090620069.

Adding to 140534244 its reverse (442435041), we get a palindrome (582969285).

The spelling of 140534244 in words is "one hundred forty million, five hundred thirty-four thousand, two hundred forty-four".