201974842 has 8 divisors (see below), whose sum is σ = 303027732. Its totient is φ = 100965600.

The previous prime is 201974833. The next prime is 201974881. The reversal of 201974842 is 248479102.

It can be written as a sum of positive squares in 2 ways, for example, as 184660921 + 17313921 = 13589^2 + 4161^2 .

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, 5742 + ... + 20902.

Almost surely, 2^201974842 is an apocalyptic number.

201974842 is a deficient number, since it is larger than the sum of its proper divisors (101052890).

201974842 is a wasteful number, since it uses less digits than its factorization.

201974842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21824.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 201974842 is about 14211.7853206415. The cubic root of 201974842 is about 586.7220711420.

The spelling of 201974842 in words is "two hundred one million, nine hundred seventy-four thousand, eight hundred forty-two".