3129990226 has 8 divisors (see below), whose sum is σ = 5121802224. Its totient is φ = 1422722820.

The previous prime is 3129990221. The next prime is 3129990229. The reversal of 3129990226 is 6220999213.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (3129990221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71136120 + ... + 71136163.

It is an arithmetic number, because the mean of its divisors is an integer number (640225278).

Almost surely, 2^3129990226 is an apocalyptic number.

3129990226 is a deficient number, since it is larger than the sum of its proper divisors (1991811998).

3129990226 is a wasteful number, since it uses less digits than its factorization.

3129990226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142272296.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 3129990226 is about 55946.3155712689. The cubic root of 3129990226 is about 1462.7866690690.

The spelling of 3129990226 in words is "three billion, one hundred twenty-nine million, nine hundred ninety thousand, two hundred twenty-six".