449396280 has 48 divisors (see below), whose sum is σ = 1460539080. Its totient is φ = 119838912.

The previous prime is 449396261. The next prime is 449396291. The reversal of 449396280 is 82693944.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 623802 + ... + 624521.

Almost surely, 2^449396280 is an apocalyptic number.

449396280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

449396280 is an abundant number, since it is smaller than the sum of its proper divisors (1011142800).

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

449396280 is a wasteful number, since it uses less digits than its factorization.

449396280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248340 (or 1248333 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 449396280 is about 21198.9688428471. The cubic root of 449396280 is about 765.9665854485.

The spelling of 449396280 in words is "four hundred forty-nine million, three hundred ninety-six thousand, two hundred eighty".