201946180 has 12 divisors (see below), whose sum is σ = 424087020. Its totient is φ = 80778464.

The previous prime is 201946177. The next prime is 201946207. The reversal of 201946180 is 81649102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22600516 + 179345664 = 4754^2 + 13392^2 .

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, 5048635 + ... + 5048674.

It is an arithmetic number, because the mean of its divisors is an integer number (35340585).

Almost surely, 2^201946180 is an apocalyptic number.

201946180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201946180 is an abundant number, since it is smaller than the sum of its proper divisors (222140840).

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

201946180 is a wasteful number, since it uses less digits than its factorization.

201946180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10097318 (or 10097316 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 201946180 is about 14210.7768964262. The cubic root of 201946180 is about 586.6943161613.

The spelling of 201946180 in words is "two hundred one million, nine hundred forty-six thousand, one hundred eighty".