542385381 has 8 divisors (see below), whose sum is σ = 761242720. Its totient is φ = 342559152.

The previous prime is 542385373. The next prime is 542385383. The reversal of 542385381 is 183583245.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 542385381 - 2³ = 542385373 is a prime.

It is a super-2 number, since 2×542385381² = 588363803045030322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542385383) 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, 4757710 + ... + 4757823.

It is an arithmetic number, because the mean of its divisors is an integer number (95155340).

Almost surely, 2^542385381 is an apocalyptic number.

It is an amenable number.

542385381 is a deficient number, since it is larger than the sum of its proper divisors (218857339).

542385381 is a wasteful number, since it uses less digits than its factorization.

542385381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9515555.

The product of its digits is 115200, while the sum is 39.

The square root of 542385381 is about 23289.1687485835. The cubic root of 542385381 is about 815.5225830328.

The spelling of 542385381 in words is "five hundred forty-two million, three hundred eighty-five thousand, three hundred eighty-one".