542716649 has 8 divisors (see below), whose sum is σ = 555260160. Its totient is φ = 530315136.

The previous prime is 542716639. The next prime is 542716663. The reversal of 542716649 is 946617245.

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

It is a cyclic number.

It is not a de Polignac number, because 542716649 - 2¹² = 542712553 is a prime.

It is a super-2 number, since 2×542716649² = 589082722203578402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542716609) 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 7 ways as a sum of consecutive naturals, for example, 27749 + ... + 43074.

It is an arithmetic number, because the mean of its divisors is an integer number (69407520).

Almost surely, 2^542716649 is an apocalyptic number.

It is an amenable number.

542716649 is a deficient number, since it is larger than the sum of its proper divisors (12543511).

542716649 is an equidigital number, since it uses as much as digits as its factorization.

542716649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70999.

The product of its digits is 362880, while the sum is 44.

The square root of 542716649 is about 23296.2797244539. The cubic root of 542716649 is about 815.6885791202.

The spelling of 542716649 in words is "five hundred forty-two million, seven hundred sixteen thousand, six hundred forty-nine".