406328413 has 4 divisors (see below), whose sum is σ = 417310300. Its totient is φ = 395346528.

The previous prime is 406328399. The next prime is 406328423. The reversal of 406328413 is 314823604.

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 208138329 + 198190084 = 14427^2 + 14078^2 .

It is a cyclic number.

It is not a de Polignac number, because 406328413 - 2²⁵ = 372773981 is a prime.

It is a super-2 number, since 2×406328413² = 330205558422197138, 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 (406328423) 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, 5490888 + ... + 5490961.

It is an arithmetic number, because the mean of its divisors is an integer number (104327575).

Almost surely, 2^406328413 is an apocalyptic number.

It is an amenable number.

406328413 is a deficient number, since it is larger than the sum of its proper divisors (10981887).

406328413 is a wasteful number, since it uses less digits than its factorization.

406328413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10981886.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 406328413 is about 20157.5894640207. The cubic root of 406328413 is about 740.6716649500.

The spelling of 406328413 in words is "four hundred six million, three hundred twenty-eight thousand, four hundred thirteen".