407260813 has 8 divisors (see below), whose sum is σ = 419326200. Its totient is φ = 395251200.

The previous prime is 407260811. The next prime is 407260837. The reversal of 407260813 is 318062704.

It can be written as a sum of positive squares in 4 ways, for example, as 321198084 + 86062729 = 17922^2 + 9277^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 407260813 - 2¹ = 407260811 is a prime.

It is a super-2 number, since 2×407260813² = 331722739610841938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (407260811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1113 + ... + 28561.

It is an arithmetic number, because the mean of its divisors is an integer number (52415775).

Almost surely, 2^407260813 is an apocalyptic number.

It is an amenable number.

407260813 is a deficient number, since it is larger than the sum of its proper divisors (12065387).

407260813 is a wasteful number, since it uses less digits than its factorization.

407260813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27887.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 407260813 is about 20180.7039768190. The cubic root of 407260813 is about 741.2377708142.

The spelling of 407260813 in words is "four hundred seven million, two hundred sixty thousand, eight hundred thirteen".