542221748 has 6 divisors (see below), whose sum is σ = 948888066. Its totient is φ = 271110872.

The previous prime is 542221697. The next prime is 542221769. The reversal of 542221748 is 847122245.

It can be written as a sum of positive squares in only one way, i.e., 345885604 + 196336144 = 18598^2 + 14012^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67777715 + ... + 67777722.

It is an arithmetic number, because the mean of its divisors is an integer number (158148011).

Almost surely, 2^542221748 is an apocalyptic number.

It is an amenable number.

542221748 is a deficient number, since it is larger than the sum of its proper divisors (406666318).

542221748 is a wasteful number, since it uses less digits than its factorization.

542221748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135555441 (or 135555439 counting only the distinct ones).

The product of its digits is 35840, while the sum is 35.

The square root of 542221748 is about 23285.6554127214. The cubic root of 542221748 is about 815.4405627365.

The spelling of 542221748 in words is "five hundred forty-two million, two hundred twenty-one thousand, seven hundred forty-eight".