209006412 has 24 divisors (see below), whose sum is σ = 488092416. Its totient is φ = 69610128.

The previous prime is 209006387. The next prime is 209006437. The reversal of 209006412 is 214600902.

It is an interprime number because it is at equal distance from previous prime (209006387) and next prime (209006437).

It is a super-2 number, since 2×209006412² = 87367360514227488, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8953 + ... + 22319.

It is an arithmetic number, because the mean of its divisors is an integer number (20337184).

Almost surely, 2^209006412 is an apocalyptic number.

It is an amenable number.

209006412 is an abundant number, since it is smaller than the sum of its proper divisors (279086004).

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

209006412 is a wasteful number, since it uses less digits than its factorization.

209006412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14677 (or 14675 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 209006412 is about 14457.0540567572. The cubic root of 209006412 is about 593.4532828512.

The spelling of 209006412 in words is "two hundred nine million, six thousand, four hundred twelve".