201046340 has 36 divisors (see below), whose sum is σ = 464073708. Its totient is φ = 73106880.

The previous prime is 201046337. The next prime is 201046361. The reversal of 201046340 is 43640102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 85784644 + 115261696 = 9262^2 + 10736^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39119 + ... + 43958.

Almost surely, 2^201046340 is an apocalyptic number.

201046340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201046340 is an abundant number, since it is smaller than the sum of its proper divisors (263027368).

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

201046340 is a wasteful number, since it uses less digits than its factorization.

201046340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83108 (or 83095 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 201046340 is about 14179.0810703656. The cubic root of 201046340 is about 585.8216132035.

Adding to 201046340 its reverse (43640102), we get a palindrome (244686442).

The spelling of 201046340 in words is "two hundred one million, forty-six thousand, three hundred forty".