140936642 has 64 divisors (see below), whose sum is σ = 283392000. Its totient is φ = 51967440.

The previous prime is 140936611. The next prime is 140936717. The reversal of 140936642 is 246639041.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 142883 + ... + 143865.

It is an arithmetic number, because the mean of its divisors is an integer number (4428000).

Almost surely, 2^140936642 is an apocalyptic number.

140936642 is an abundant number, since it is smaller than the sum of its proper divisors (142455358).

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

140936642 is a wasteful number, since it uses less digits than its factorization.

140936642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036 (or 1022 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 140936642 is about 11871.6739342015. The cubic root of 140936642 is about 520.4048154436.

The spelling of 140936642 in words is "one hundred forty million, nine hundred thirty-six thousand, six hundred forty-two".