449778004 has 24 divisors (see below), whose sum is σ = 862031520. Its totient is φ = 204069984.

The previous prime is 449777983. The next prime is 449778011. The reversal of 449778004 is 400877944.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70234 + ... + 76369.

It is an arithmetic number, because the mean of its divisors is an integer number (35917980).

Almost surely, 2^449778004 is an apocalyptic number.

It is an amenable number.

449778004 is a deficient number, since it is larger than the sum of its proper divisors (412253516).

449778004 is a wasteful number, since it uses less digits than its factorization.

449778004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146679 (or 146677 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 449778004 is about 21207.9702942078. The cubic root of 449778004 is about 766.1833986078.

The spelling of 449778004 in words is "four hundred forty-nine million, seven hundred seventy-eight thousand, four".