30612340 has 48 divisors (see below), whose sum is σ = 70507584. Its totient is φ = 11072000.

The previous prime is 30612311. The next prime is 30612353. The reversal of 30612340 is 4321603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76140 + ... + 76540.

It is an arithmetic number, because the mean of its divisors is an integer number (1468908).

Almost surely, 2^30612340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30612340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35253792).

30612340 is an abundant number, since it is smaller than the sum of its proper divisors (39895244).

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

30612340 is a wasteful number, since it uses less digits than its factorization.

30612340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768 (or 766 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 30612340 is about 5532.8419460527. The cubic root of 30612340 is about 312.8231196513.

Adding to 30612340 its reverse (4321603), we get a palindrome (34933943).

The spelling of 30612340 in words is "thirty million, six hundred twelve thousand, three hundred forty".