1209890230 has 8 divisors (see below), whose sum is σ = 2177802432. Its totient is φ = 483956088.

The previous prime is 1209890219. The next prime is 1209890243. The reversal of 1209890230 is 320989021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60494502 + ... + 60494521.

It is an arithmetic number, because the mean of its divisors is an integer number (272225304).

Almost surely, 2^1209890230 is an apocalyptic number.

1209890230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1209890230 is a deficient number, since it is larger than the sum of its proper divisors (967912202).

1209890230 is a wasteful number, since it uses less digits than its factorization.

1209890230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120989030.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 1209890230 is about 34783.4763932532. The cubic root of 1209890230 is about 1065.5700123328.

The spelling of 1209890230 in words is "one billion, two hundred nine million, eight hundred ninety thousand, two hundred thirty".