540801946 has 4 divisors (see below), whose sum is σ = 811202922. Its totient is φ = 270400972.

The previous prime is 540801923. The next prime is 540801949. The reversal of 540801946 is 649108045.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 532455625 + 8346321 = 23075^2 + 2889^2 .

It is not an unprimeable number, because it can be changed into a prime (540801949) by changing a digit.

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 as a sum of consecutive naturals, namely, 135200485 + ... + 135200488.

Almost surely, 2^540801946 is an apocalyptic number.

540801946 is a deficient number, since it is larger than the sum of its proper divisors (270400976).

540801946 is a wasteful number, since it uses less digits than its factorization.

540801946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270400975.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 540801946 is about 23255.1488062321. The cubic root of 540801946 is about 814.7281997289.

The spelling of 540801946 in words is "five hundred forty million, eight hundred one thousand, nine hundred forty-six".