140407056 has 30 divisors (see below), whose sum is σ = 392945150. Its totient is φ = 46802304.

The previous prime is 140407051. The next prime is 140407061. The reversal of 140407056 is 650704041.

It is an interprime number because it is at equal distance from previous prime (140407051) and next prime (140407061).

It can be written as a sum of positive squares in only one way, i.e., 134931456 + 5475600 = 11616^2 + 2340^2 .

It is not an unprimeable number, because it can be changed into a prime (140407051) 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 5 ways as a sum of consecutive naturals, for example, 487381 + ... + 487668.

Almost surely, 2^140407056 is an apocalyptic number.

140407056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

140407056 is an abundant number, since it is smaller than the sum of its proper divisors (252538094).

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

140407056 is a wasteful number, since it uses less digits than its factorization.

140407056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975063 (or 975054 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 140407056 is about 11849.3483365120. The cubic root of 140407056 is about 519.7521698723.

The spelling of 140407056 in words is "one hundred forty million, four hundred seven thousand, fifty-six".