409950451 has 4 divisors (see below), whose sum is σ = 411189304. Its totient is φ = 408711600.

The previous prime is 409950449. The next prime is 409950469. The reversal of 409950451 is 154059904.

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 409950451 - 2¹ = 409950449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 409950451.

It is not an unprimeable number, because it can be changed into a prime (409950481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 618930 + ... + 619591.

It is an arithmetic number, because the mean of its divisors is an integer number (102797326).

Almost surely, 2^409950451 is an apocalyptic number.

409950451 is a deficient number, since it is larger than the sum of its proper divisors (1238853).

409950451 is a wasteful number, since it uses less digits than its factorization.

409950451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238852.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 409950451 is about 20247.2331690036. The cubic root of 409950451 is about 742.8659563145.

The spelling of 409950451 in words is "four hundred nine million, nine hundred fifty thousand, four hundred fifty-one".