1349497888 has 12 divisors (see below), whose sum is σ = 2656824030. Its totient is φ = 674748928.

The previous prime is 1349497879. The next prime is 1349497889. The reversal of 1349497888 is 8887949431.

It can be written as a sum of positive squares in only one way, i.e., 1349239824 + 258064 = 36732^2 + 508^2 .

It is a super-2 number, since 2×1349497888² = 3642289099432921088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1349497889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21085873 + ... + 21085936.

Almost surely, 2^1349497888 is an apocalyptic number.

It is an amenable number.

1349497888 is a deficient number, since it is larger than the sum of its proper divisors (1307326142).

1349497888 is an equidigital number, since it uses as much as digits as its factorization.

1349497888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42171819 (or 42171811 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 61.

The square root of 1349497888 is about 36735.5126274291. The cubic root of 1349497888 is about 1105.0724106435.

The spelling of 1349497888 in words is "one billion, three hundred forty-nine million, four hundred ninety-seven thousand, eight hundred eighty-eight".