406704036740 has 24 divisors (see below), whose sum is σ = 857161804632. Its totient is φ = 162094314240.

The previous prime is 406704036733. The next prime is 406704036749. The reversal of 406704036740 is 47630407604.

It can be written as a sum of positive squares in 4 ways, for example, as 3003916864 + 403700119876 = 54808^2 + 635374^2 .

It is a super-2 number, since 2×406704036740² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (406704036749) 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, 36700601 + ... + 36711680.

It is an arithmetic number, because the mean of its divisors is an integer number (35715075193).

Almost surely, 2^406704036740 is an apocalyptic number.

It is an amenable number.

406704036740 is an abundant number, since it is smaller than the sum of its proper divisors (450457767892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

406704036740 is a wasteful number, since it uses less digits than its factorization.

406704036740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73412567 (or 73412565 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 41.

The spelling of 406704036740 in words is "four hundred six billion, seven hundred four million, thirty-six thousand, seven hundred forty".