42904443 has 8 divisors (see below), whose sum is σ = 57895488. Its totient is φ = 28258184.

The previous prime is 42904429. The next prime is 42904457. The reversal of 42904443 is 34440924.

It is an interprime number because it is at equal distance from previous prime (42904429) and next prime (42904457).

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

It is a cyclic number.

It is not a de Polignac number, because 42904443 - 2¹³ = 42896251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42904443.

It is not an unprimeable number, because it can be changed into a prime (42904493) 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, 85905 + ... + 86402.

It is an arithmetic number, because the mean of its divisors is an integer number (7236936).

Almost surely, 2^42904443 is an apocalyptic number.

42904443 is a deficient number, since it is larger than the sum of its proper divisors (14991045).

42904443 is a wasteful number, since it uses less digits than its factorization.

42904443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172393.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 42904443 is about 6550.1483189314. The cubic root of 42904443 is about 350.0800986746.

The spelling of 42904443 in words is "forty-two million, nine hundred four thousand, four hundred forty-three".