30126378 has 16 divisors (see below), whose sum is σ = 60429600. Its totient is φ = 10012656.

The previous prime is 30126377. The next prime is 30126379. The reversal of 30126378 is 87362103.

It is an interprime number because it is at equal distance from previous prime (30126377) and next prime (30126379).

It is not an unprimeable number, because it can be changed into a prime (30126377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5100 + ... + 9287.

It is an arithmetic number, because the mean of its divisors is an integer number (3776850).

Almost surely, 2^30126378 is an apocalyptic number.

30126378 is an abundant number, since it is smaller than the sum of its proper divisors (30303222).

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

30126378 is a wasteful number, since it uses less digits than its factorization.

30126378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14741.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 30126378 is about 5488.7501309497. The cubic root of 30126378 is about 311.1589569366.

The spelling of 30126378 in words is "thirty million, one hundred twenty-six thousand, three hundred seventy-eight".