42378011 has 8 divisors (see below), whose sum is σ = 46082400. Its totient is φ = 38737152.

The previous prime is 42377977. The next prime is 42378031. The reversal of 42378011 is 11087324.

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

It is a cyclic number.

It is not a de Polignac number, because 42378011 - 2⁶ = 42377947 is a prime.

It is a super-2 number, since 2×42378011² = 3591791632632242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42378031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14486 + ... + 17163.

It is an arithmetic number, because the mean of its divisors is an integer number (5760300).

Almost surely, 2^42378011 is an apocalyptic number.

42378011 is a deficient number, since it is larger than the sum of its proper divisors (3704389).

42378011 is a wasteful number, since it uses less digits than its factorization.

42378011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31765.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 42378011 is about 6509.8395525543. The cubic root of 42378011 is about 348.6423897726.

The spelling of 42378011 in words is "forty-two million, three hundred seventy-eight thousand, eleven".