30231342 has 48 divisors (see below), whose sum is σ = 67223520. Its totient is φ = 9816576.

The previous prime is 30231323. The next prime is 30231343. The reversal of 30231342 is 24313203.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231343) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 180943 + ... + 181109.

It is an arithmetic number, because the mean of its divisors is an integer number (1400490).

Almost surely, 2^30231342 is an apocalyptic number.

30231342 is an abundant number, since it is smaller than the sum of its proper divisors (36992178).

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

30231342 is a wasteful number, since it uses less digits than its factorization.

30231342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 30231342 is about 5498.3035565527. The cubic root of 30231342 is about 311.5199100627.

Adding to 30231342 its reverse (24313203), we get a palindrome (54544545).

The spelling of 30231342 in words is "thirty million, two hundred thirty-one thousand, three hundred forty-two".