449940002 has 18 divisors (see below), whose sum is σ = 690323697. Its totient is φ = 219945336.

The previous prime is 449939999. The next prime is 449940031. The reversal of 449940002 is 200049944.

It can be written as a sum of positive squares in 2 ways, for example, as 426794281 + 23145721 = 20659^2 + 4811^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=14999.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1589753 + ... + 1590035.

Almost surely, 2^449940002 is an apocalyptic number.

449940002 is a deficient number, since it is larger than the sum of its proper divisors (240383695).

449940002 is an frugal number, since it uses more digits than its factorization.

449940002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 449940002 is about 21211.7892220341. The cubic root of 449940002 is about 766.2753738181.

Multiplying 449940002 by its sum of digits (32), we get a square (14398080064 = 119992²).

Multiplying 449940002 by its product of nonzero digits (10368), we get a square (4664977940736 = 2159856²).

Adding to 449940002 its reverse (200049944), we get a palindrome (649989946).

The spelling of 449940002 in words is "four hundred forty-nine million, nine hundred forty thousand, two".