42917394 has 32 divisors (see below), whose sum is σ = 92695680. Its totient is φ = 13168512.

The previous prime is 42917393. The next prime is 42917417. The reversal of 42917394 is 49371924.

42917394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42917393) 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 15 ways as a sum of consecutive naturals, for example, 43899 + ... + 44865.

It is an arithmetic number, because the mean of its divisors is an integer number (2896740).

Almost surely, 2^42917394 is an apocalyptic number.

42917394 is an abundant number, since it is smaller than the sum of its proper divisors (49778286).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42917394 is a wasteful number, since it uses less digits than its factorization.

42917394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554.

The product of its digits is 54432, while the sum is 39.

The square root of 42917394 is about 6551.1368479066. The cubic root of 42917394 is about 350.1153198228.

The spelling of 42917394 in words is "forty-two million, nine hundred seventeen thousand, three hundred ninety-four".