42397377 has 8 divisors (see below), whose sum is σ = 61668960. Its totient is φ = 25695360.

The previous prime is 42397361. The next prime is 42397387. The reversal of 42397377 is 77379324.

42397377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 42397377 - 2⁴ = 42397361 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (42397307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 642352 + ... + 642417.

It is an arithmetic number, because the mean of its divisors is an integer number (7708620).

Almost surely, 2^42397377 is an apocalyptic number.

It is an amenable number.

42397377 is a deficient number, since it is larger than the sum of its proper divisors (19271583).

42397377 is a wasteful number, since it uses less digits than its factorization.

42397377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284783.

The product of its digits is 222264, while the sum is 42.

The square root of 42397377 is about 6511.3268233134. The cubic root of 42397377 is about 348.6954894826.

The spelling of 42397377 in words is "forty-two million, three hundred ninety-seven thousand, three hundred seventy-seven".