42004206 has 24 divisors (see below), whose sum is σ = 93127320. Its totient is φ = 13675536.

The previous prime is 42004177. The next prime is 42004211. The reversal of 42004206 is 60240024.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 11 ways as a sum of consecutive naturals, for example, 26361 + ... + 27908.

It is an arithmetic number, because the mean of its divisors is an integer number (3880305).

Almost surely, 2^42004206 is an apocalyptic number.

42004206 is an abundant number, since it is smaller than the sum of its proper divisors (51123114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42004206 is a wasteful number, since it uses less digits than its factorization.

42004206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54320 (or 54317 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 42004206 is about 6481.0651902291. The cubic root of 42004206 is about 347.6142674093.

The spelling of 42004206 in words is "forty-two million, four thousand, two hundred six".