406401513 has 16 divisors (see below), whose sum is σ = 646204416. Its totient is φ = 222132240.

The previous prime is 406401511. The next prime is 406401521. The reversal of 406401513 is 315104604.

It is not a de Polignac number, because 406401513 - 2¹ = 406401511 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (406401511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420223 + ... + 421188.

It is an arithmetic number, because the mean of its divisors is an integer number (40387776).

Almost surely, 2^406401513 is an apocalyptic number.

It is an amenable number.

406401513 is a deficient number, since it is larger than the sum of its proper divisors (239802903).

406401513 is a wasteful number, since it uses less digits than its factorization.

406401513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841444.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 406401513 is about 20159.4025953152. The cubic root of 406401513 is about 740.7160788203.

The spelling of 406401513 in words is "four hundred six million, four hundred one thousand, five hundred thirteen".