210071642 has 8 divisors (see below), whose sum is σ = 343753632. Its totient is φ = 95487100.

The previous prime is 210071611. The next prime is 210071671. The reversal of 210071642 is 246170012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4774334 + ... + 4774377.

It is an arithmetic number, because the mean of its divisors is an integer number (42969204).

Almost surely, 2^210071642 is an apocalyptic number.

210071642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

210071642 is a deficient number, since it is larger than the sum of its proper divisors (133681990).

210071642 is a wasteful number, since it uses less digits than its factorization.

210071642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9548724.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 210071642 is about 14493.8484192432. The cubic root of 210071642 is about 594.4597803622.

The spelling of 210071642 in words is "two hundred ten million, seventy-one thousand, six hundred forty-two".