30052890 has 64 divisors (see below), whose sum is σ = 91595520. Its totient is φ = 6868800.

The previous prime is 30052871. The next prime is 30052901. The reversal of 30052890 is 9825003.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6061 + ... + 9840.

It is an arithmetic number, because the mean of its divisors is an integer number (1431180).

Almost surely, 2^30052890 is an apocalyptic number.

30052890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30052890 is an abundant number, since it is smaller than the sum of its proper divisors (61542630).

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

30052890 is a wasteful number, since it uses less digits than its factorization.

30052890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15924 (or 15918 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 30052890 is about 5482.0516232520. The cubic root of 30052890 is about 310.9057450884.

Adding to 30052890 its reverse (9825003), we get a palindrome (39877893).

The spelling of 30052890 in words is "thirty million, fifty-two thousand, eight hundred ninety".