542005266 has 32 divisors (see below), whose sum is σ = 1191886848. Its totient is φ = 162948240.

The previous prime is 542005241. The next prime is 542005301. The reversal of 542005266 is 662500245.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23950 + ... + 40713.

It is an arithmetic number, because the mean of its divisors is an integer number (37246464).

Almost surely, 2^542005266 is an apocalyptic number.

542005266 is an abundant number, since it is smaller than the sum of its proper divisors (649881582).

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

542005266 is a wasteful number, since it uses less digits than its factorization.

542005266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64806.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 542005266 is about 23281.0065504050. The cubic root of 542005266 is about 815.3320267591.

The spelling of 542005266 in words is "five hundred forty-two million, five thousand, two hundred sixty-six".