201972046 has 8 divisors (see below), whose sum is σ = 304281720. Its totient is φ = 100544808.

The previous prime is 201972041. The next prime is 201972073. The reversal of 201972046 is 640279102.

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

It is a super-2 number, since 2×201972046² = 81585414730852232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201971999 and 201972017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201972041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220036 + ... + 220951.

It is an arithmetic number, because the mean of its divisors is an integer number (38035215).

Almost surely, 2^201972046 is an apocalyptic number.

201972046 is a deficient number, since it is larger than the sum of its proper divisors (102309674).

201972046 is a wasteful number, since it uses less digits than its factorization.

201972046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441218.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 201972046 is about 14211.6869512384. The cubic root of 201972046 is about 586.7193637380.

The spelling of 201972046 in words is "two hundred one million, nine hundred seventy-two thousand, forty-six".