42117398 has 8 divisors (see below), whose sum is σ = 66892392. Its totient is φ = 19819936.

The previous prime is 42117377. The next prime is 42117409. The reversal of 42117398 is 89371124.

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

It is a Curzon number.

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, 619340 + ... + 619407.

It is an arithmetic number, because the mean of its divisors is an integer number (8361549).

Almost surely, 2^42117398 is an apocalyptic number.

42117398 is a deficient number, since it is larger than the sum of its proper divisors (24774994).

42117398 is a wasteful number, since it uses less digits than its factorization.

42117398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238766.

The product of its digits is 12096, while the sum is 35.

The square root of 42117398 is about 6489.7918302516. The cubic root of 42117398 is about 347.9262350809.

The spelling of 42117398 in words is "forty-two million, one hundred seventeen thousand, three hundred ninety-eight".