30316990 has 48 divisors (see below), whose sum is σ = 62351856. Its totient is φ = 10524800.

The previous prime is 30316943. The next prime is 30316991. The reversal of 30316990 is 9961303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30316991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57930 + ... + 58450.

It is an arithmetic number, because the mean of its divisors is an integer number (1298997).

Almost surely, 2^30316990 is an apocalyptic number.

30316990 is an abundant number, since it is smaller than the sum of its proper divisors (32034866).

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

30316990 is a wasteful number, since it uses less digits than its factorization.

30316990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 30316990 is about 5506.0866320827. The cubic root of 30316990 is about 311.8138202731.

The spelling of 30316990 in words is "thirty million, three hundred sixteen thousand, nine hundred ninety".