1298073290 has 32 divisors (see below), whose sum is σ = 2385289296. Its totient is φ = 508469760.

The previous prime is 1298073281. The next prime is 1298073299. The reversal of 1298073290 is 923708921.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1298073281) and next prime (1298073299).

It can be written as a sum of positive squares in 8 ways, for example, as 209931121 + 1088142169 = 14489^2 + 32987^2 .

It is a super-2 number, since 2×1298073290² = 3369988532422848200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1298073299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137564 + ... + 146696.

Almost surely, 2^1298073290 is an apocalyptic number.

1298073290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1298073290 is a deficient number, since it is larger than the sum of its proper divisors (1087216006).

1298073290 is a wasteful number, since it uses less digits than its factorization.

1298073290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9434.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 1298073290 is about 36028.7841870913. The cubic root of 1298073290 is about 1090.8534376049.

The spelling of 1298073290 in words is "one billion, two hundred ninety-eight million, seventy-three thousand, two hundred ninety".