42819478 has 8 divisors (see below), whose sum is σ = 69169968. Its totient is φ = 19762824.

The previous prime is 42819433. The next prime is 42819509. The reversal of 42819478 is 87491824.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 823426 + ... + 823477.

It is an arithmetic number, because the mean of its divisors is an integer number (8646246).

Almost surely, 2^42819478 is an apocalyptic number.

42819478 is a deficient number, since it is larger than the sum of its proper divisors (26350490).

42819478 is a wasteful number, since it uses less digits than its factorization.

42819478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646918.

The product of its digits is 129024, while the sum is 43.

The square root of 42819478 is about 6543.6593737755. The cubic root of 42819478 is about 349.8488544659.

The spelling of 42819478 in words is "forty-two million, eight hundred nineteen thousand, four hundred seventy-eight".