42193646 has 8 divisors (see below), whose sum is σ = 69044184. Its totient is φ = 19178920.

The previous prime is 42193603. The next prime is 42193649. The reversal of 42193646 is 64639124.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42193649) 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, 958925 + ... + 958968.

It is an arithmetic number, because the mean of its divisors is an integer number (8630523).

Almost surely, 2^42193646 is an apocalyptic number.

42193646 is a deficient number, since it is larger than the sum of its proper divisors (26850538).

42193646 is a wasteful number, since it uses less digits than its factorization.

42193646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917906.

The product of its digits is 31104, while the sum is 35.

The square root of 42193646 is about 6495.6636304538. The cubic root of 42193646 is about 348.1360667105.

The spelling of 42193646 in words is "forty-two million, one hundred ninety-three thousand, six hundred forty-six".