409420977 has 8 divisors (see below), whose sum is σ = 623879616. Its totient is φ = 233954832.

The previous prime is 409420967. The next prime is 409421009. The reversal of 409420977 is 779024904.

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

It is not a de Polignac number, because 409420977 - 2¹⁸ = 409158833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (409420967) 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, 9748098 + ... + 9748139.

It is an arithmetic number, because the mean of its divisors is an integer number (77984952).

Almost surely, 2^409420977 is an apocalyptic number.

It is an amenable number.

409420977 is a deficient number, since it is larger than the sum of its proper divisors (214458639).

409420977 is a wasteful number, since it uses less digits than its factorization.

409420977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19496247.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 409420977 is about 20234.1537258171. The cubic root of 409420977 is about 742.5460008458.

The spelling of 409420977 in words is "four hundred nine million, four hundred twenty thousand, nine hundred seventy-seven".