30512412 has 36 divisors (see below), whose sum is σ = 88147696. Its totient is φ = 8717760.

The previous prime is 30512371. The next prime is 30512429. The reversal of 30512412 is 21421503.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60289 + ... + 60792.

Almost surely, 2^30512412 is an apocalyptic number.

It is an amenable number.

30512412 is an abundant number, since it is smaller than the sum of its proper divisors (57635284).

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

30512412 is a wasteful number, since it uses less digits than its factorization.

30512412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121098 (or 121093 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 30512412 is about 5523.8041239711. The cubic root of 30512412 is about 312.4823652982.

Adding to 30512412 its reverse (21421503), we get a palindrome (51933915).

Subtracting from 30512412 its reverse (21421503), we obtain a palindrome (9090909).

The spelling of 30512412 in words is "thirty million, five hundred twelve thousand, four hundred twelve".