542185830 has 48 divisors (see below), whose sum is σ = 1412199360. Its totient is φ = 144324864.

The previous prime is 542185823. The next prime is 542185837. The reversal of 542185830 is 38581245.

It is a happy number.

542185830 is a `hidden beast` number, since 54 + 21 + 8 + 583 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (542185823) and next prime (542185837).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542185837) 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 23 ways as a sum of consecutive naturals, for example, 48291 + ... + 58449.

It is an arithmetic number, because the mean of its divisors is an integer number (29420820).

Almost surely, 2^542185830 is an apocalyptic number.

542185830 is an abundant number, since it is smaller than the sum of its proper divisors (870013530).

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

542185830 is a wasteful number, since it uses less digits than its factorization.

542185830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10765 (or 10762 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 542185830 is about 23284.8841525999. The cubic root of 542185830 is about 815.4225567940.

The spelling of 542185830 in words is "five hundred forty-two million, one hundred eighty-five thousand, eight hundred thirty".