140722840 has 32 divisors (see below), whose sum is σ = 325187280. Its totient is φ = 54767232.

The previous prime is 140722817. The next prime is 140722843. The reversal of 140722840 is 48227041.

It is a junction number, because it is equal to n+sod(n) for n = 140722799 and 140722808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140722843) 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, 46062 + ... + 49021.

Almost surely, 2^140722840 is an apocalyptic number.

140722840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140722840 is an abundant number, since it is smaller than the sum of its proper divisors (184464440).

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

140722840 is a wasteful number, since it uses less digits than its factorization.

140722840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95131 (or 95127 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 140722840 is about 11862.6658049529. The cubic root of 140722840 is about 520.1415295234.

Adding to 140722840 its reverse (48227041), we get a palindrome (188949881).

The spelling of 140722840 in words is "one hundred forty million, seven hundred twenty-two thousand, eight hundred forty".