449621233 has 4 divisors (see below), whose sum is σ = 449926308. Its totient is φ = 449316160.

The previous prime is 449621189. The next prime is 449621257. The reversal of 449621233 is 332126944.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 88887184 + 360734049 = 9428^2 + 18993^2 .

It is a cyclic number.

It is not a de Polignac number, because 449621233 - 2¹³ = 449613041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449621033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150316 + ... + 153277.

It is an arithmetic number, because the mean of its divisors is an integer number (112481577).

Almost surely, 2^449621233 is an apocalyptic number.

It is an amenable number.

449621233 is a deficient number, since it is larger than the sum of its proper divisors (305075).

449621233 is a wasteful number, since it uses less digits than its factorization.

449621233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305074.

The product of its digits is 31104, while the sum is 34.

The square root of 449621233 is about 21204.2739323939. The cubic root of 449621233 is about 766.0943700243.

The spelling of 449621233 in words is "four hundred forty-nine million, six hundred twenty-one thousand, two hundred thirty-three".