542991648 has 48 divisors (see below), whose sum is σ = 1443415680. Its totient is φ = 178703616.

The previous prime is 542991643. The next prime is 542991677. The reversal of 542991648 is 846199245.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 542991597 and 542991606.

It is not an unprimeable number, because it can be changed into a prime (542991643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28215 + ... + 43382.

It is an arithmetic number, because the mean of its divisors is an integer number (30071160).

Almost surely, 2^542991648 is an apocalyptic number.

It is an amenable number.

542991648 is an abundant number, since it is smaller than the sum of its proper divisors (900424032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

542991648 is a wasteful number, since it uses less digits than its factorization.

542991648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71689 (or 71681 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

The square root of 542991648 is about 23302.1811854599. The cubic root of 542991648 is about 815.8263278991.

The spelling of 542991648 in words is "five hundred forty-two million, nine hundred ninety-one thousand, six hundred forty-eight".