140140824 has 32 divisors (see below), whose sum is σ = 354294000. Its totient is φ = 46188032.

The previous prime is 140140823. The next prime is 140140831. The reversal of 140140824 is 428041041.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 140140794 and 140140803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140140823) 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, 30669 + ... + 34940.

Almost surely, 2^140140824 is an apocalyptic number.

It is an amenable number.

140140824 is an abundant number, since it is smaller than the sum of its proper divisors (214153176).

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

140140824 is a wasteful number, since it uses less digits than its factorization.

140140824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65707 (or 65703 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 140140824 is about 11838.1089706084. The cubic root of 140140824 is about 519.4234536968.

Adding to 140140824 its reverse (428041041), we get a palindrome (568181865).

The spelling of 140140824 in words is "one hundred forty million, one hundred forty thousand, eight hundred twenty-four".