1298830770 has 48 divisors (see below), whose sum is σ = 3575608920. Its totient is φ = 325980672.

The previous prime is 1298830693. The next prime is 1298830789. The reversal of 1298830770 is 770388921.

It can be written as a sum of positive squares in 4 ways, for example, as 751691889 + 547138881 = 27417^2 + 23391^2 .

It is a super-2 number, since 2×1298830770² = 3373922738197585800, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 422925 + ... + 425984.

Almost surely, 2^1298830770 is an apocalyptic number.

1298830770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1298830770 is an abundant number, since it is smaller than the sum of its proper divisors (2276778150).

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

1298830770 is a wasteful number, since it uses less digits than its factorization.

1298830770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848939 (or 848936 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 1298830770 is about 36039.2948044215. The cubic root of 1298830770 is about 1091.0655825312.

It can be divided in two parts, 1298830 and 770, that added together give a square (1299600 = 1140²).

The spelling of 1298830770 in words is "one billion, two hundred ninety-eight million, eight hundred thirty thousand, seven hundred seventy".