30312396 has 36 divisors (see below), whose sum is σ = 78073632. Its totient is φ = 9912864.

The previous prime is 30312383. The next prime is 30312409. The reversal of 30312396 is 69321303.

It is an interprime number because it is at equal distance from previous prime (30312383) and next prime (30312409).

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

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, 6036 + ... + 9851.

It is an arithmetic number, because the mean of its divisors is an integer number (2168712).

Almost surely, 2^30312396 is an apocalyptic number.

30312396 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

30312396 is an abundant number, since it is smaller than the sum of its proper divisors (47761236).

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

30312396 is a wasteful number, since it uses less digits than its factorization.

30312396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15950 (or 15945 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 30312396 is about 5505.6694415847. The cubic root of 30312396 is about 311.7980695334.

Adding to 30312396 its reverse (69321303), we get a palindrome (99633699).

The spelling of 30312396 in words is "thirty million, three hundred twelve thousand, three hundred ninety-six".