30402312 has 16 divisors (see below), whose sum is σ = 76005840. Its totient is φ = 10134096.

The previous prime is 30402301. The next prime is 30402367. The reversal of 30402312 is 21320403.

It is a junction number, because it is equal to n+sod(n) for n = 30402291 and 30402300.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633358 + ... + 633405.

It is an arithmetic number, because the mean of its divisors is an integer number (4750365).

Almost surely, 2^30402312 is an apocalyptic number.

It is an amenable number.

30402312 is an abundant number, since it is smaller than the sum of its proper divisors (45603528).

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

30402312 is a wasteful number, since it uses less digits than its factorization.

30402312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266772 (or 1266768 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 30402312 is about 5513.8291594862. The cubic root of 30402312 is about 312.1060619029.

Adding to 30402312 its reverse (21320403), we get a palindrome (51722715).

The spelling of 30402312 in words is "thirty million, four hundred two thousand, three hundred twelve".