140739228 has 48 divisors (see below), whose sum is σ = 417007360. Its totient is φ = 40210992.

The previous prime is 140739227. The next prime is 140739257. The reversal of 140739228 is 822937041.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 140739192 and 140739201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140739227) by changing a digit.

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, 92326 + ... + 93837.

Almost surely, 2^140739228 is an apocalyptic number.

140739228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

140739228 is an abundant number, since it is smaller than the sum of its proper divisors (276268132).

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

140739228 is a wasteful number, since it uses less digits than its factorization.

140739228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186183 (or 186175 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 140739228 is about 11863.3565233453. The cubic root of 140739228 is about 520.1617199169.

The spelling of 140739228 in words is "one hundred forty million, seven hundred thirty-nine thousand, two hundred twenty-eight".