42378801 has 8 divisors (see below), whose sum is σ = 58032384. Its totient is φ = 27488880.

The previous prime is 42378799. The next prime is 42378803. The reversal of 42378801 is 10887324.

It is an interprime number because it is at equal distance from previous prime (42378799) and next prime (42378803).

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

It is not a de Polignac number, because 42378801 - 2¹ = 42378799 is a prime.

It is a super-3 number, since 3×42378801³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (42378803) 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, 190785 + ... + 191006.

It is an arithmetic number, because the mean of its divisors is an integer number (7254048).

Almost surely, 2^42378801 is an apocalyptic number.

It is an amenable number.

42378801 is a deficient number, since it is larger than the sum of its proper divisors (15653583).

42378801 is a wasteful number, since it uses less digits than its factorization.

42378801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381831.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 42378801 is about 6509.9002296502. The cubic root of 42378801 is about 348.6445561931.

The spelling of 42378801 in words is "forty-two million, three hundred seventy-eight thousand, eight hundred one".