540221450 has 12 divisors (see below), whose sum is σ = 1004811990. Its totient is φ = 216088560.

The previous prime is 540221449. The next prime is 540221557. The reversal of 540221450 is 54122045.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 319015321 + 221206129 = 17861^2 + 14873^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5402165 + ... + 5402264.

Almost surely, 2^540221450 is an apocalyptic number.

540221450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

540221450 is a deficient number, since it is larger than the sum of its proper divisors (464590540).

540221450 is a wasteful number, since it uses less digits than its factorization.

540221450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10804441 (or 10804436 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 540221450 is about 23242.6644341822. The cubic root of 540221450 is about 814.4365860211.

Adding to 540221450 its reverse (54122045), we get a palindrome (594343495).

The spelling of 540221450 in words is "five hundred forty million, two hundred twenty-one thousand, four hundred fifty".