1213339406 has 8 divisors (see below), whose sum is σ = 1820236584. Its totient is φ = 606593880.

The previous prime is 1213339397. The next prime is 1213339427. The reversal of 1213339406 is 6049333121.

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, 15185 + ... + 51548.

It is an arithmetic number, because the mean of its divisors is an integer number (227529573).

Almost surely, 2^1213339406 is an apocalyptic number.

1213339406 is a deficient number, since it is larger than the sum of its proper divisors (606897178).

1213339406 is an equidigital number, since it uses as much as digits as its factorization.

1213339406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75826.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 1213339406 is about 34833.0217753212. The cubic root of 1213339406 is about 1066.5816334341.

The spelling of 1213339406 in words is "one billion, two hundred thirteen million, three hundred thirty-nine thousand, four hundred six".