30990064 has 40 divisors (see below), whose sum is σ = 72237440. Its totient is φ = 12581568.

The previous prime is 30990019. The next prime is 30990077. The reversal of 30990064 is 46009903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5154 + ... + 9409.

It is an arithmetic number, because the mean of its divisors is an integer number (1805936).

Almost surely, 2^30990064 is an apocalyptic number.

It is an amenable number.

30990064 is an abundant number, since it is smaller than the sum of its proper divisors (41247376).

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

30990064 is a wasteful number, since it uses less digits than its factorization.

30990064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14597 (or 14591 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 30990064 is about 5566.8720121806. The cubic root of 30990064 is about 314.1044995472.

Adding to 30990064 its reverse (46009903), we get a palindrome (76999967).

The spelling of 30990064 in words is "thirty million, nine hundred ninety thousand, sixty-four".