201742486 has 16 divisors (see below), whose sum is σ = 336354768. Its totient is φ = 89970400.

The previous prime is 201742481. The next prime is 201742507. The reversal of 201742486 is 684247102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201742481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85345 + ... + 87676.

It is an arithmetic number, because the mean of its divisors is an integer number (21022173).

Almost surely, 2^201742486 is an apocalyptic number.

201742486 is a deficient number, since it is larger than the sum of its proper divisors (134612282).

201742486 is a wasteful number, since it uses less digits than its factorization.

201742486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173087.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 201742486 is about 14203.6082035517. The cubic root of 201742486 is about 586.4969924408.

Adding to 201742486 its reverse (684247102), we get a palindrome (885989588).

The spelling of 201742486 in words is "two hundred one million, seven hundred forty-two thousand, four hundred eighty-six".