449770077 has 20 divisors (see below), whose sum is σ = 695050620. Its totient is φ = 289505664.

The previous prime is 449770007. The next prime is 449770081. The reversal of 449770077 is 770077944.

It can be written as a sum of positive squares in 2 ways, for example, as 289646361 + 160123716 = 17019^2 + 12654^2 .

It is not a de Polignac number, because 449770077 - 2⁸ = 449769821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449770007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 93388 + ... + 98085.

It is an arithmetic number, because the mean of its divisors is an integer number (34752531).

Almost surely, 2^449770077 is an apocalyptic number.

It is an amenable number.

449770077 is a deficient number, since it is larger than the sum of its proper divisors (245280543).

449770077 is a wasteful number, since it uses less digits than its factorization.

449770077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191514 (or 191505 counting only the distinct ones).

The product of its (nonzero) digits is 345744, while the sum is 45.

The square root of 449770077 is about 21207.7834060988. The cubic root of 449770077 is about 766.1788974454.

The spelling of 449770077 in words is "four hundred forty-nine million, seven hundred seventy thousand, seventy-seven".