542094381 has 12 divisors (see below), whose sum is σ = 799685952. Its totient is φ = 353706696.

The previous prime is 542094367. The next prime is 542094389. The reversal of 542094381 is 183490245.

It is not a de Polignac number, because 542094381 - 2¹¹ = 542092333 is a prime.

It is a super-2 number, since 2×542094381² = 587732635823546322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542094389) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 640351 + ... + 641196.

It is an arithmetic number, because the mean of its divisors is an integer number (66640496).

Almost surely, 2^542094381 is an apocalyptic number.

It is an amenable number.

542094381 is a deficient number, since it is larger than the sum of its proper divisors (257591571).

542094381 is a wasteful number, since it uses less digits than its factorization.

542094381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281600 (or 1281597 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 542094381 is about 23282.9203709500. The cubic root of 542094381 is about 815.3767091859.

The spelling of 542094381 in words is "five hundred forty-two million, ninety-four thousand, three hundred eighty-one".