30101438 has 8 divisors (see below), whose sum is σ = 45386688. Its totient is φ = 14972544.

The previous prime is 30101437. The next prime is 30101443. The reversal of 30101438 is 83410103.

It is a happy number.

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30101437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38606 + ... + 39377.

It is an arithmetic number, because the mean of its divisors is an integer number (5673336).

Almost surely, 2^30101438 is an apocalyptic number.

30101438 is a deficient number, since it is larger than the sum of its proper divisors (15285250).

30101438 is a wasteful number, since it uses less digits than its factorization.

30101438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78178.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 30101438 is about 5486.4777407732. The cubic root of 30101438 is about 311.0730693376.

The spelling of 30101438 in words is "thirty million, one hundred one thousand, four hundred thirty-eight".