406061365 has 4 divisors (see below), whose sum is σ = 487273644. Its totient is φ = 324849088.

The previous prime is 406061351. The next prime is 406061377. The reversal of 406061365 is 563160604.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 157904356 + 248157009 = 12566^2 + 15753^2 .

It is a cyclic number.

It is not a de Polignac number, because 406061365 - 2¹³ = 406053173 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40606132 + ... + 40606141.

It is an arithmetic number, because the mean of its divisors is an integer number (121818411).

Almost surely, 2^406061365 is an apocalyptic number.

It is an amenable number.

406061365 is a deficient number, since it is larger than the sum of its proper divisors (81212279).

406061365 is an equidigital number, since it uses as much as digits as its factorization.

406061365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81212278.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 406061365 is about 20150.9643689824. The cubic root of 406061365 is about 740.5093674685.

The spelling of 406061365 in words is "four hundred six million, sixty-one thousand, three hundred sixty-five".