406636013 has 8 divisors (see below), whose sum is σ = 464943360. Its totient is φ = 348382800.

The previous prime is 406635973. The next prime is 406636019. The reversal of 406636013 is 310636604.

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 406636013 - 2⁶ = 406635949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406636019) 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, 4103 + ... + 28811.

It is an arithmetic number, because the mean of its divisors is an integer number (58117920).

Almost surely, 2^406636013 is an apocalyptic number.

It is an amenable number.

406636013 is a deficient number, since it is larger than the sum of its proper divisors (58307347).

406636013 is a wasteful number, since it uses less digits than its factorization.

406636013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27067.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 406636013 is about 20165.2179011287. The cubic root of 406636013 is about 740.8585196633.

The spelling of 406636013 in words is "four hundred six million, six hundred thirty-six thousand, thirteen".