542904938 has 4 divisors (see below), whose sum is σ = 814357410. Its totient is φ = 271452468.

The previous prime is 542904937. The next prime is 542904977. The reversal of 542904938 is 839409245.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 539493529 + 3411409 = 23227^2 + 1847^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (542904937) 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 as a sum of consecutive naturals, namely, 135726233 + ... + 135726236.

Almost surely, 2^542904938 is an apocalyptic number.

542904938 is a deficient number, since it is larger than the sum of its proper divisors (271452472).

542904938 is a wasteful number, since it uses less digits than its factorization.

542904938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271452471.

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 542904938 is about 23300.3205557349. The cubic root of 542904938 is about 815.7828993203.

The spelling of 542904938 in words is "five hundred forty-two million, nine hundred four thousand, nine hundred thirty-eight".