42705554 has 8 divisors (see below), whose sum is σ = 64118460. Its totient is φ = 21332736.

The previous prime is 42705541. The next prime is 42705571. The reversal of 42705554 is 45550724.

It can be written as a sum of positive squares in 2 ways, for example, as 42549529 + 156025 = 6523^2 + 395^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 42705554.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7199 + ... + 11714.

Almost surely, 2^42705554 is an apocalyptic number.

42705554 is a deficient number, since it is larger than the sum of its proper divisors (21412906).

42705554 is a wasteful number, since it uses less digits than its factorization.

42705554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20044.

The product of its (nonzero) digits is 28000, while the sum is 32.

The square root of 42705554 is about 6534.9486608542. The cubic root of 42705554 is about 349.5383137047.

The spelling of 42705554 in words is "forty-two million, seven hundred five thousand, five hundred fifty-four".