42232478 has 16 divisors (see below), whose sum is σ = 68835840. Its totient is φ = 19359000.

The previous prime is 42232469. The next prime is 42232481. The reversal of 42232478 is 87423224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16748 + ... + 19103.

It is an arithmetic number, because the mean of its divisors is an integer number (4302240).

Almost surely, 2^42232478 is an apocalyptic number.

42232478 is a deficient number, since it is larger than the sum of its proper divisors (26603362).

42232478 is a wasteful number, since it uses less digits than its factorization.

42232478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35903.

The product of its digits is 21504, while the sum is 32.

The square root of 42232478 is about 6498.6520140718. The cubic root of 42232478 is about 348.2428337705.

The spelling of 42232478 in words is "forty-two million, two hundred thirty-two thousand, four hundred seventy-eight".