42964478 has 4 divisors (see below), whose sum is σ = 64446720. Its totient is φ = 21482238.

The previous prime is 42964477. The next prime is 42964541. The reversal of 42964478 is 87446924.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42964477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10741118 + ... + 10741121.

It is an arithmetic number, because the mean of its divisors is an integer number (16111680).

Almost surely, 2^42964478 is an apocalyptic number.

42964478 is a deficient number, since it is larger than the sum of its proper divisors (21482242).

42964478 is a wasteful number, since it uses less digits than its factorization.

42964478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21482241.

The product of its digits is 387072, while the sum is 44.

The square root of 42964478 is about 6554.7294375893. The cubic root of 42964478 is about 350.2433083719.

The spelling of 42964478 in words is "forty-two million, nine hundred sixty-four thousand, four hundred seventy-eight".