42140206 has 4 divisors (see below), whose sum is σ = 63210312. Its totient is φ = 21070102.

The previous prime is 42140201. The next prime is 42140237. The reversal of 42140206 is 60204124.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42140201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10535050 + ... + 10535053.

It is an arithmetic number, because the mean of its divisors is an integer number (15802578).

Almost surely, 2^42140206 is an apocalyptic number.

42140206 is a deficient number, since it is larger than the sum of its proper divisors (21070106).

42140206 is a wasteful number, since it uses less digits than its factorization.

42140206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21070105.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 42140206 is about 6491.5488136499. The cubic root of 42140206 is about 347.9890283677.

The spelling of 42140206 in words is "forty-two million, one hundred forty thousand, two hundred six".