542991378 has 32 divisors (see below), whose sum is σ = 1108179072. Its totient is φ = 177321600.

The previous prime is 542991377. The next prime is 542991431. The reversal of 542991378 is 873199245.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (542991377) 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 15 ways as a sum of consecutive naturals, for example, 93438 + ... + 99078.

It is an arithmetic number, because the mean of its divisors is an integer number (34630596).

Almost surely, 2^542991378 is an apocalyptic number.

542991378 is an abundant number, since it is smaller than the sum of its proper divisors (565187694).

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

542991378 is a wasteful number, since it uses less digits than its factorization.

542991378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5970.

The product of its digits is 544320, while the sum is 48.

The square root of 542991378 is about 23302.1753920101. The cubic root of 542991378 is about 815.8261926771.

The spelling of 542991378 in words is "five hundred forty-two million, nine hundred ninety-one thousand, three hundred seventy-eight".