30421616 has 20 divisors (see below), whose sum is σ = 59053512. Its totient is φ = 15182016.

The previous prime is 30421607. The next prime is 30421627. The reversal of 30421616 is 61612403.

It is a happy number.

It is a super-3 number, since 3×30421616³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30421591 and 30421600.

It is a congruent number.

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, 8810 + ... + 11766.

Almost surely, 2^30421616 is an apocalyptic number.

It is an amenable number.

30421616 is a deficient number, since it is larger than the sum of its proper divisors (28631896).

30421616 is a wasteful number, since it uses less digits than its factorization.

30421616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3608 (or 3602 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 30421616 is about 5515.5793893298. The cubic root of 30421616 is about 312.1721053527.

The spelling of 30421616 in words is "thirty million, four hundred twenty-one thousand, six hundred sixteen".