400067067 has 8 divisors (see below), whose sum is σ = 534877696. Its totient is φ = 265983912.

The previous prime is 400067033. The next prime is 400067071. The reversal of 400067067 is 760760004.

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

It is not a de Polignac number, because 400067067 - 2⁷ = 400066939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400067077) 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, 180583 + ... + 182784.

It is an arithmetic number, because the mean of its divisors is an integer number (66859712).

Almost surely, 2^400067067 is an apocalyptic number.

400067067 is a deficient number, since it is larger than the sum of its proper divisors (134810629).

400067067 is a wasteful number, since it uses less digits than its factorization.

400067067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363737.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 400067067 is about 20001.6766047249. The cubic root of 400067067 is about 736.8474769169.

The spelling of 400067067 in words is "four hundred million, sixty-seven thousand, sixty-seven".