140283428 has 12 divisors (see below), whose sum is σ = 252131292. Its totient is φ = 68245920.

The previous prime is 140283397. The next prime is 140283431. The reversal of 140283428 is 824382041.

It can be written as a sum of positive squares in 2 ways, for example, as 69588964 + 70694464 = 8342^2 + 8408^2 .

It is a junction number, because it is equal to n+sod(n) for n = 140283394 and 140283403.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 473783 + ... + 474078.

It is an arithmetic number, because the mean of its divisors is an integer number (21010941).

Almost surely, 2^140283428 is an apocalyptic number.

It is an amenable number.

140283428 is a deficient number, since it is larger than the sum of its proper divisors (111847864).

140283428 is a wasteful number, since it uses less digits than its factorization.

140283428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947902 (or 947900 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 140283428 is about 11844.1305295070. The cubic root of 140283428 is about 519.5995783255.

The spelling of 140283428 in words is "one hundred forty million, two hundred eighty-three thousand, four hundred twenty-eight".