42147922 has 8 divisors (see below), whose sum is σ = 64022400. Its totient is φ = 20807124.

The previous prime is 42147893. The next prime is 42147929. The reversal of 42147922 is 22974124.

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

It is not an unprimeable number, because it can be changed into a prime (42147929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133222 + ... + 133537.

It is an arithmetic number, because the mean of its divisors is an integer number (8002800).

Almost surely, 2^42147922 is an apocalyptic number.

42147922 is a deficient number, since it is larger than the sum of its proper divisors (21874478).

42147922 is a wasteful number, since it uses less digits than its factorization.

42147922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266840.

The product of its digits is 8064, while the sum is 31.

The square root of 42147922 is about 6492.1430976219. The cubic root of 42147922 is about 348.0102663550.

The spelling of 42147922 in words is "forty-two million, one hundred forty-seven thousand, nine hundred twenty-two".