30040612 has 48 divisors (see below), whose sum is σ = 63286272. Its totient is φ = 12205440.

The previous prime is 30040603. The next prime is 30040631. The reversal of 30040612 is 21604003.

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, 45678 + ... + 46330.

It is an arithmetic number, because the mean of its divisors is an integer number (1318464).

Almost surely, 2^30040612 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 30040612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31643136).

30040612 is an abundant number, since it is smaller than the sum of its proper divisors (33245660).

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

30040612 is a wasteful number, since it uses less digits than its factorization.

30040612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748 (or 746 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 30040612 is about 5480.9316726265. The cubic root of 30040612 is about 310.8633995136.

Adding to 30040612 its reverse (21604003), we get a palindrome (51644615).

The spelling of 30040612 in words is "thirty million, forty thousand, six hundred twelve".