42104949 has 8 divisors (see below), whose sum is σ = 57199392. Its totient is φ = 27540240.

The previous prime is 42104947. The next prime is 42104957. The reversal of 42104949 is 94940124.

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

It is not a de Polignac number, because 42104949 - 2¹ = 42104947 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42104947) 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, 132247 + ... + 132564.

It is an arithmetic number, because the mean of its divisors is an integer number (7149924).

Almost surely, 2^42104949 is an apocalyptic number.

It is an amenable number.

42104949 is a deficient number, since it is larger than the sum of its proper divisors (15094443).

42104949 is a wasteful number, since it uses less digits than its factorization.

42104949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264867.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 42104949 is about 6488.8326376938. The cubic root of 42104949 is about 347.8919518573.

The spelling of 42104949 in words is "forty-two million, one hundred four thousand, nine hundred forty-nine".