42420093 has 8 divisors (see below), whose sum is σ = 58088928. Its totient is φ = 27515664.

The previous prime is 42420067. The next prime is 42420109. The reversal of 42420093 is 39002424.

It is a happy number.

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

It is not a de Polignac number, because 42420093 - 2²¹ = 40322941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42420013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190971 + ... + 191192.

It is an arithmetic number, because the mean of its divisors is an integer number (7261116).

Almost surely, 2^42420093 is an apocalyptic number.

It is an amenable number.

42420093 is a deficient number, since it is larger than the sum of its proper divisors (15668835).

42420093 is a wasteful number, since it uses less digits than its factorization.

42420093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382203.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 42420093 is about 6513.0709346667. The cubic root of 42420093 is about 348.7577539674.

The spelling of 42420093 in words is "forty-two million, four hundred twenty thousand, ninety-three".