42900478 has 4 divisors (see below), whose sum is σ = 64350720. Its totient is φ = 21450238.

The previous prime is 42900449. The next prime is 42900491. The reversal of 42900478 is 87400924.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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, 10725118 + ... + 10725121.

It is an arithmetic number, because the mean of its divisors is an integer number (16087680).

Almost surely, 2^42900478 is an apocalyptic number.

42900478 is a deficient number, since it is larger than the sum of its proper divisors (21450242).

42900478 is a wasteful number, since it uses less digits than its factorization.

42900478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21450241.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 42900478 is about 6549.8456470363. The cubic root of 42900478 is about 350.0693141632.

The spelling of 42900478 in words is "forty-two million, nine hundred thousand, four hundred seventy-eight".