542387220 has 48 divisors (see below), whose sum is σ = 1520832768. Its totient is φ = 144432000.

The previous prime is 542387201. The next prime is 542387239. The reversal of 542387220 is 22783245.

It is an interprime number because it is at equal distance from previous prime (542387201) and next prime (542387239).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39042 + ... + 51078.

It is an arithmetic number, because the mean of its divisors is an integer number (31684016).

Almost surely, 2^542387220 is an apocalyptic number.

It is an amenable number.

542387220 is an abundant number, since it is smaller than the sum of its proper divisors (978445548).

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

542387220 is a wasteful number, since it uses less digits than its factorization.

542387220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12800 (or 12798 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 542387220 is about 23289.2082304229. The cubic root of 542387220 is about 815.5235047294.

The spelling of 542387220 in words is "five hundred forty-two million, three hundred eighty-seven thousand, two hundred twenty".