542501449 has 16 divisors (see below), whose sum is σ = 627274368. Its totient is φ = 459568512.

The previous prime is 542501447. The next prime is 542501473. The reversal of 542501449 is 944105245.

It is a cyclic number.

It is not a de Polignac number, because 542501449 - 2¹ = 542501447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (542501441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 578509 + ... + 579445.

It is an arithmetic number, because the mean of its divisors is an integer number (39204648).

Almost surely, 2^542501449 is an apocalyptic number.

It is an amenable number.

542501449 is a deficient number, since it is larger than the sum of its proper divisors (84772919).

542501449 is a wasteful number, since it uses less digits than its factorization.

542501449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 542501449 is about 23291.6605032789. The cubic root of 542501449 is about 815.5807515892.

The spelling of 542501449 in words is "five hundred forty-two million, five hundred one thousand, four hundred forty-nine".