2299986 has 24 divisors (see below), whose sum is σ = 5367180. Its totient is φ = 707616.

The previous prime is 2299963. The next prime is 2300003. The reversal of 2299986 is 6899922.

It can be written as a sum of positive squares in 2 ways, for example, as 2295225 + 4761 = 1515^2 + 69^2 .

It is a super-3 number, since 3×2299986³ = 36500333464057191768, which contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4681 + ... + 5148.

2^2299986 is an apocalyptic number.

2299986 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2299986 is an abundant number, since it is smaller than the sum of its proper divisors (3067194).

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

2299986 is a wasteful number, since it uses less digits than its factorization.

2299986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9850 (or 9847 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 2299986 is about 1516.5704731400. The cubic root of 2299986 is about 132.0003443517. Note that the first 3 decimals are identical.

The spelling of 2299986 in words is "two million, two hundred ninety-nine thousand, nine hundred eighty-six".