140607738 has 80 divisors (see below), whose sum is σ = 328268160. Its totient is φ = 44950464.

The previous prime is 140607713. The next prime is 140607743. The reversal of 140607738 is 837706041.

140607738 is a `hidden beast` number, since 1 + 40 + 607 + 7 + 3 + 8 = 666.

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 39 ways as a sum of consecutive naturals, for example, 449070 + ... + 449382.

It is an arithmetic number, because the mean of its divisors is an integer number (4103352).

Almost surely, 2^140607738 is an apocalyptic number.

140607738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 140607738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164134080).

140607738 is an abundant number, since it is smaller than the sum of its proper divisors (187660422).

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

140607738 is a wasteful number, since it uses less digits than its factorization.

140607738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 140607738 is about 11857.8133734681. The cubic root of 140607738 is about 519.9996770215. Note that the first 3 decimals are identical.

The spelling of 140607738 in words is "one hundred forty million, six hundred seven thousand, seven hundred thirty-eight".