140440924 has 48 divisors (see below), whose sum is σ = 273829248. Its totient is φ = 62612928.

The previous prime is 140440903. The next prime is 140440931. The reversal of 140440924 is 429044041.

It is a junction number, because it is equal to n+sod(n) for n = 140440892 and 140440901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238959 + ... + 239545.

It is an arithmetic number, because the mean of its divisors is an integer number (5704776).

Almost surely, 2^140440924 is an apocalyptic number.

It is an amenable number.

140440924 is a deficient number, since it is larger than the sum of its proper divisors (133388324).

140440924 is a wasteful number, since it uses less digits than its factorization.

140440924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754 (or 752 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 140440924 is about 11850.7773584689. Note that the first 3 decimals coincide. The cubic root of 140440924 is about 519.7939568304.

Adding to 140440924 its reverse (429044041), we get a palindrome (569484965).

The spelling of 140440924 in words is "one hundred forty million, four hundred forty thousand, nine hundred twenty-four".