540447447 has 8 divisors (see below), whose sum is σ = 721798000. Its totient is φ = 359697600.

The previous prime is 540447437. The next prime is 540447449. The reversal of 540447447 is 744744045.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 540447447 - 2⁷ = 540447319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540447449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148072 + ... + 151677.

It is an arithmetic number, because the mean of its divisors is an integer number (90224750).

Almost surely, 2^540447447 is an apocalyptic number.

540447447 is a deficient number, since it is larger than the sum of its proper divisors (181350553).

540447447 is a wasteful number, since it uses less digits than its factorization.

540447447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300353.

The product of its (nonzero) digits is 250880, while the sum is 39.

The square root of 540447447 is about 23247.5256102666. The cubic root of 540447447 is about 814.5501410360.

The spelling of 540447447 in words is "five hundred forty million, four hundred forty-seven thousand, four hundred forty-seven".