406042367 has 4 divisors (see below), whose sum is σ = 406109760. Its totient is φ = 405974976.

The previous prime is 406042361. The next prime is 406042379. The reversal of 406042367 is 763240604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 406042367 - 2⁸ = 406042111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406042361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23663 + ... + 37040.

It is an arithmetic number, because the mean of its divisors is an integer number (101527440).

Almost surely, 2^406042367 is an apocalyptic number.

406042367 is a deficient number, since it is larger than the sum of its proper divisors (67393).

406042367 is an equidigital number, since it uses as much as digits as its factorization.

406042367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67392.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 406042367 is about 20150.4929716372. The cubic root of 406042367 is about 740.4978187901.

The spelling of 406042367 in words is "four hundred six million, forty-two thousand, three hundred sixty-seven".