1298864120 has 32 divisors (see below), whose sum is σ = 2943788400. Its totient is φ = 515751168.

The previous prime is 1298864117. The next prime is 1298864123. The reversal of 1298864120 is 214688921.

It is an interprime number because it is at equal distance from previous prime (1298864117) and next prime (1298864123).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298864123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113030 + ... + 123989.

Almost surely, 2^1298864120 is an apocalyptic number.

1298864120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1298864120 is an abundant number, since it is smaller than the sum of its proper divisors (1644924280).

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

1298864120 is a wasteful number, since it uses less digits than its factorization.

1298864120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237167 (or 237163 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 1298864120 is about 36039.7574908600. The cubic root of 1298864120 is about 1091.0749208598.

The spelling of 1298864120 in words is "one billion, two hundred ninety-eight million, eight hundred sixty-four thousand, one hundred twenty".