140076638 has 32 divisors (see below), whose sum is σ = 234178560. Its totient is φ = 62431200.

The previous prime is 140076637. The next prime is 140076649. The reversal of 140076638 is 836670041.

140076638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 140076598 and 140076607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140076637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95813 + ... + 97263.

It is an arithmetic number, because the mean of its divisors is an integer number (7318080).

Almost surely, 2^140076638 is an apocalyptic number.

140076638 is a deficient number, since it is larger than the sum of its proper divisors (94101922).

140076638 is a wasteful number, since it uses less digits than its factorization.

140076638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1592.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 140076638 is about 11835.3976697025. The cubic root of 140076638 is about 519.3441410832.

The spelling of 140076638 in words is "one hundred forty million, seventy-six thousand, six hundred thirty-eight".