42780201 has 8 divisors (see below), whose sum is σ = 57628704. Its totient is φ = 28225920.

The previous prime is 42780197. The next prime is 42780209. The reversal of 42780201 is 10208724.

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

It is not a de Polignac number, because 42780201 - 2² = 42780197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42780209) 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 7 ways as a sum of consecutive naturals, for example, 73215 + ... + 73796.

It is an arithmetic number, because the mean of its divisors is an integer number (7203588).

Almost surely, 2^42780201 is an apocalyptic number.

It is an amenable number.

42780201 is a deficient number, since it is larger than the sum of its proper divisors (14848503).

42780201 is a wasteful number, since it uses less digits than its factorization.

42780201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147111.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 42780201 is about 6540.6575357528. The cubic root of 42780201 is about 349.7418531849.

Adding to 42780201 its reverse (10208724), we get a palindrome (52988925).

The spelling of 42780201 in words is "forty-two million, seven hundred eighty thousand, two hundred one".