30663090 has 32 divisors (see below), whose sum is σ = 81768960. Its totient is φ = 8176752.

The previous prime is 30663043. The next prime is 30663091. The reversal of 30663090 is 9036603.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (30663091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56514 + ... + 57053.

It is an arithmetic number, because the mean of its divisors is an integer number (2555280).

Almost surely, 2^30663090 is an apocalyptic number.

30663090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30663090 is an abundant number, since it is smaller than the sum of its proper divisors (51105870).

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

30663090 is a wasteful number, since it uses less digits than its factorization.

30663090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113583 (or 113577 counting only the distinct ones).

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

The square root of 30663090 is about 5537.4262974779. The cubic root of 30663090 is about 312.9958932049.

Adding to 30663090 its reverse (9036603), we get a palindrome (39699693).

The spelling of 30663090 in words is "thirty million, six hundred sixty-three thousand, ninety".