402380067 has 4 divisors (see below), whose sum is σ = 536506760. Its totient is φ = 268253376.

The previous prime is 402380063. The next prime is 402380087. The reversal of 402380067 is 760083204.

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

It is not a de Polignac number, because 402380067 - 2² = 402380063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402380063) 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, 67063342 + ... + 67063347.

It is an arithmetic number, because the mean of its divisors is an integer number (134126690).

Almost surely, 2^402380067 is an apocalyptic number.

402380067 is a deficient number, since it is larger than the sum of its proper divisors (134126693).

402380067 is a wasteful number, since it uses less digits than its factorization.

402380067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134126692.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 402380067 is about 20059.4134261199. The cubic root of 402380067 is about 738.2647844317.

The spelling of 402380067 in words is "four hundred two million, three hundred eighty thousand, sixty-seven".