406740400007 has 4 divisors (see below), whose sum is σ = 406760961216. Its totient is φ = 406719838800.

The previous prime is 406740399929. The next prime is 406740400009. The reversal of 406740400007 is 700004047604.

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 406740400007 - 2¹⁶ = 406740334471 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 (406740400009) 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, 10250903 + ... + 10290504.

It is an arithmetic number, because the mean of its divisors is an integer number (101690240304).

Almost surely, 2^406740400007 is an apocalyptic number.

406740400007 is a deficient number, since it is larger than the sum of its proper divisors (20561209).

406740400007 is a wasteful number, since it uses less digits than its factorization.

406740400007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20561208.

The product of its (nonzero) digits is 18816, while the sum is 32.

The spelling of 406740400007 in words is "four hundred six billion, seven hundred forty million, four hundred thousand, seven".