30381373 has 4 divisors (see below), whose sum is σ = 33143328. Its totient is φ = 27619420.

The previous prime is 30381371. The next prime is 30381419. The reversal of 30381373 is 37318303.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30381373 - 2¹ = 30381371 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30381371) 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, 1380961 + ... + 1380982.

It is an arithmetic number, because the mean of its divisors is an integer number (8285832).

Almost surely, 2^30381373 is an apocalyptic number.

It is an amenable number.

30381373 is a deficient number, since it is larger than the sum of its proper divisors (2761955).

30381373 is a wasteful number, since it uses less digits than its factorization.

30381373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2761954.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 30381373 is about 5511.9300612399. The cubic root of 30381373 is about 312.0343931240.

Adding to 30381373 its reverse (37318303), we get a palindrome (67699676).

The spelling of 30381373 in words is "thirty million, three hundred eighty-one thousand, three hundred seventy-three".