30650990 has 32 divisors (see below), whose sum is σ = 58367520. Its totient is φ = 11556864.

The previous prime is 30650981. The next prime is 30650993. The reversal of 30650990 is 9905603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30650993) 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, 66842 + ... + 67298.

It is an arithmetic number, because the mean of its divisors is an integer number (1823985).

Almost surely, 2^30650990 is an apocalyptic number.

30650990 is a deficient number, since it is larger than the sum of its proper divisors (27716530).

30650990 is a wasteful number, since it uses less digits than its factorization.

30650990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 30650990 is about 5536.3336243402. Note that the first 3 decimals coincide. The cubic root of 30650990 is about 312.9547172223.

The spelling of 30650990 in words is "thirty million, six hundred fifty thousand, nine hundred ninety".