30890052 has 24 divisors (see below), whose sum is σ = 80085600. Its totient is φ = 10296648.

The previous prime is 30890021. The next prime is 30890053. The reversal of 30890052 is 25009803.

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

It is a junction number, because it is equal to n+sod(n) for n = 30889998 and 30890025.

It is not an unprimeable number, because it can be changed into a prime (30890053) 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, 142902 + ... + 143117.

It is an arithmetic number, because the mean of its divisors is an integer number (3336900).

Almost surely, 2^30890052 is an apocalyptic number.

It is an amenable number.

30890052 is an abundant number, since it is smaller than the sum of its proper divisors (49195548).

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

30890052 is a wasteful number, since it uses less digits than its factorization.

30890052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286032 (or 286024 counting only the distinct ones).

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

The square root of 30890052 is about 5557.8819706791. The cubic root of 30890052 is about 313.7662398011.

Adding to 30890052 its reverse (25009803), we get a palindrome (55899855).

The spelling of 30890052 in words is "thirty million, eight hundred ninety thousand, fifty-two".