1299498486 has 64 divisors (see below), whose sum is σ = 3151927296. Its totient is φ = 351763200.

The previous prime is 1299498451. The next prime is 1299498491. The reversal of 1299498486 is 6848949921.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2170 + ... + 51026.

It is an arithmetic number, because the mean of its divisors is an integer number (49248864).

Almost surely, 2^1299498486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1299498486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1575963648).

1299498486 is an abundant number, since it is smaller than the sum of its proper divisors (1852428810).

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

1299498486 is a wasteful number, since it uses less digits than its factorization.

1299498486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48917.

The product of its digits is 8957952, while the sum is 60.

The square root of 1299498486 is about 36048.5573359046. The cubic root of 1299498486 is about 1091.2525191609.

The spelling of 1299498486 in words is "one billion, two hundred ninety-nine million, four hundred ninety-eight thousand, four hundred eighty-six".