542749248 has 98 divisors (see below), whose sum is σ = 1614927174. Its totient is φ = 180900864.

The previous prime is 542749247. The next prime is 542749313. The reversal of 542749248 is 842947245.

It can be written as a sum of positive squares in only one way, i.e., 494973504 + 47775744 = 22248^2 + 6912^2 .

It is not an unprimeable number, because it can be changed into a prime (542749247) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 40840 + ... + 52472.

Almost surely, 2^542749248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542749248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (807463587).

542749248 is an abundant number, since it is smaller than the sum of its proper divisors (1072177926).

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

542749248 is an equidigital number, since it uses as much as digits as its factorization.

542749248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11663 (or 11638 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 542749248 is about 23296.9793750177. The cubic root of 542749248 is about 815.7049106010.

The spelling of 542749248 in words is "five hundred forty-two million, seven hundred forty-nine thousand, two hundred forty-eight".