30313690 has 16 divisors (see below), whose sum is σ = 59525280. Its totient is φ = 11023120.

The previous prime is 30313687. The next prime is 30313697. The reversal of 30313690 is 9631303.

It is a super-2 number, since 2×30313690² = 1837839602832200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30313697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137680 + ... + 137899.

It is an arithmetic number, because the mean of its divisors is an integer number (3720330).

Almost surely, 2^30313690 is an apocalyptic number.

30313690 is a deficient number, since it is larger than the sum of its proper divisors (29211590).

30313690 is a wasteful number, since it uses less digits than its factorization.

30313690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275597.

The product of its (nonzero) digits is 1458, while the sum is 25.

The square root of 30313690 is about 5505.7869555587. The cubic root of 30313690 is about 311.8025062327.

Adding to 30313690 its reverse (9631303), we get a palindrome (39944993).

The spelling of 30313690 in words is "thirty million, three hundred thirteen thousand, six hundred ninety".