400000004067 has 8 divisors (see below), whose sum is σ = 561403514560. Its totient is φ = 252631581480.

The previous prime is 400000004059. The next prime is 400000004071. The reversal of 400000004067 is 760400000004.

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

It is not a de Polignac number, because 400000004067 - 2³ = 400000004059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400000004057) 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, 3508771909 + ... + 3508772022.

It is an arithmetic number, because the mean of its divisors is an integer number (70175439320).

Almost surely, 2^400000004067 is an apocalyptic number.

400000004067 is a deficient number, since it is larger than the sum of its proper divisors (161403510493).

400000004067 is a wasteful number, since it uses less digits than its factorization.

400000004067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7017543953.

The product of its (nonzero) digits is 672, while the sum is 21.

The spelling of 400000004067 in words is "four hundred billion, four thousand, sixty-seven".