1049778297 has 6 divisors (see below), whose sum is σ = 1516346442. Its totient is φ = 699852192.

The previous prime is 1049778293. The next prime is 1049778299. The reversal of 1049778297 is 7928779401.

It can be written as a sum of positive squares in only one way, i.e., 1025216361 + 24561936 = 32019^2 + 4956^2 .

It is not a de Polignac number, because 1049778297 - 2² = 1049778293 is a prime.

It is a super-2 number, since 2×1049778297² = 2204068945704440418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1049778293) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58321008 + ... + 58321025.

It is an arithmetic number, because the mean of its divisors is an integer number (252724407).

Almost surely, 2^1049778297 is an apocalyptic number.

It is an amenable number.

1049778297 is a deficient number, since it is larger than the sum of its proper divisors (466568145).

1049778297 is a wasteful number, since it uses less digits than its factorization.

1049778297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116642039 (or 116642036 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 54.

The square root of 1049778297 is about 32400.2823598808. The cubic root of 1049778297 is about 1016.3248158678.

The spelling of 1049778297 in words is "one billion, forty-nine million, seven hundred seventy-eight thousand, two hundred ninety-seven".