449961719 has 8 divisors (see below), whose sum is σ = 476140032. Its totient is φ = 424334680.

The previous prime is 449961713. The next prime is 449961727. The reversal of 449961719 is 917169944.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-449961719 is a prime.

It is a super-2 number, since 2×449961719² = 404931097130869922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449961713) 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, 136139 + ... + 139404.

It is an arithmetic number, because the mean of its divisors is an integer number (59517504).

Almost surely, 2^449961719 is an apocalyptic number.

449961719 is a deficient number, since it is larger than the sum of its proper divisors (26178313).

449961719 is a wasteful number, since it uses less digits than its factorization.

449961719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275637.

The product of its digits is 489888, while the sum is 50.

The square root of 449961719 is about 21212.3011245833. The cubic root of 449961719 is about 766.2877020800.

Subtracting 449961719 from its reverse (917169944), we obtain a square (467208225 = 21615²).

The spelling of 449961719 in words is "four hundred forty-nine million, nine hundred sixty-one thousand, seven hundred nineteen".