30378906 has 24 divisors (see below), whose sum is σ = 68683680. Its totient is φ = 9685896.

The previous prime is 30378889. The next prime is 30378919. The reversal of 30378906 is 60987303.

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, 36276 + ... + 37103.

It is an arithmetic number, because the mean of its divisors is an integer number (2861820).

Almost surely, 2^30378906 is an apocalyptic number.

30378906 is an abundant number, since it is smaller than the sum of its proper divisors (38304774).

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

30378906 is a wasteful number, since it uses less digits than its factorization.

30378906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73410 (or 73407 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 30378906 is about 5511.7062693870. The cubic root of 30378906 is about 312.0259470531.

The spelling of 30378906 in words is "thirty million, three hundred seventy-eight thousand, nine hundred six".