449996690 has 64 divisors (see below), whose sum is σ = 960664320. Its totient is φ = 149610240.

The previous prime is 449996653. The next prime is 449996693. The reversal of 449996690 is 96699944.

It is a super-2 number, since 2×449996690² = 404994042021912200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (449996693) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154427 + ... + 157313.

It is an arithmetic number, because the mean of its divisors is an integer number (15010380).

Almost surely, 2^449996690 is an apocalyptic number.

449996690 is an abundant number, since it is smaller than the sum of its proper divisors (510667630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

449996690 is a wasteful number, since it uses less digits than its factorization.

449996690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3027.

The product of its (nonzero) digits is 3779136, while the sum is 56.

The square root of 449996690 is about 21213.1254180048. The cubic root of 449996690 is about 766.3075535117.

The spelling of 449996690 in words is "four hundred forty-nine million, nine hundred ninety-six thousand, six hundred ninety".