30333490 has 64 divisors (see below), whose sum is σ = 62612352. Its totient is φ = 10570560.

The previous prime is 30333427. The next prime is 30333497. The reversal of 30333490 is 9433303.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30333497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 572304 + ... + 572356.

It is an arithmetic number, because the mean of its divisors is an integer number (978318).

Almost surely, 2^30333490 is an apocalyptic number.

30333490 is an abundant number, since it is smaller than the sum of its proper divisors (32278862).

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

30333490 is a wasteful number, since it uses less digits than its factorization.

30333490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 25.

The square root of 30333490 is about 5507.5847701148. The cubic root of 30333490 is about 311.8703781629.

Adding to 30333490 its reverse (9433303), we get a palindrome (39766793).

The spelling of 30333490 in words is "thirty million, three hundred thirty-three thousand, four hundred ninety".