30390648 has 16 divisors (see below), whose sum is σ = 75976680. Its totient is φ = 10130208.

The previous prime is 30390643. The next prime is 30390649. The reversal of 30390648 is 84609303.

It is a super-3 number, since 3×30390648³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30390641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633115 + ... + 633162.

Almost surely, 2^30390648 is an apocalyptic number.

It is an amenable number.

30390648 is an abundant number, since it is smaller than the sum of its proper divisors (45586032).

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

30390648 is a wasteful number, since it uses less digits than its factorization.

30390648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266286 (or 1266282 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 30390648 is about 5512.7713538655. The cubic root of 30390648 is about 312.0661431103.

It can be divided in two parts, 303 and 90648, that added together give a triangular number (90951 = T₄₂₆).

The spelling of 30390648 in words is "thirty million, three hundred ninety thousand, six hundred forty-eight".