400004074007 has 4 divisors (see below), whose sum is σ = 409760270976. Its totient is φ = 390247877040.

The previous prime is 400004073977. The next prime is 400004074009. The reversal of 400004074007 is 700470400004.

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 400004074007 - 2³² = 395709106711 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 (400004074009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4878098423 + ... + 4878098504.

It is an arithmetic number, because the mean of its divisors is an integer number (102440067744).

Almost surely, 2^400004074007 is an apocalyptic number.

400004074007 is a deficient number, since it is larger than the sum of its proper divisors (9756196969).

400004074007 is an equidigital number, since it uses as much as digits as its factorization.

400004074007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9756196968.

The product of its (nonzero) digits is 3136, while the sum is 26.

The spelling of 400004074007 in words is "four hundred billion, four million, seventy-four thousand, seven".