406380959 has 4 divisors (see below), whose sum is σ = 408508800. Its totient is φ = 404253120.

The previous prime is 406380913. The next prime is 406380991. The reversal of 406380959 is 959083604.

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

It is a cyclic number.

It is not a de Polignac number, because 406380959 - 2¹² = 406376863 is a prime.

It is a super-3 number, since 3×406380959³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406380059) 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, 1063634 + ... + 1064015.

It is an arithmetic number, because the mean of its divisors is an integer number (102127200).

Almost surely, 2^406380959 is an apocalyptic number.

406380959 is a deficient number, since it is larger than the sum of its proper divisors (2127841).

406380959 is a wasteful number, since it uses less digits than its factorization.

406380959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2127840.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 406380959 is about 20158.8928019373. The cubic root of 406380959 is about 740.7035912232.

The spelling of 406380959 in words is "four hundred six million, three hundred eighty thousand, nine hundred fifty-nine".