30399090 has 32 divisors (see below), whose sum is σ = 73120320. Its totient is φ = 8088384.

The previous prime is 30399073. The next prime is 30399133. The reversal of 30399090 is 9099303.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17752 + ... + 19388.

It is an arithmetic number, because the mean of its divisors is an integer number (2285010).

Almost surely, 2^30399090 is an apocalyptic number.

30399090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30399090 is an abundant number, since it is smaller than the sum of its proper divisors (42721230).

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

30399090 is a wasteful number, since it uses less digits than its factorization.

30399090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2266.

The product of its (nonzero) digits is 6561, while the sum is 33.

The square root of 30399090 is about 5513.5369772951. The cubic root of 30399090 is about 312.0950359733.

The spelling of 30399090 in words is "thirty million, three hundred ninety-nine thousand, ninety".