30489250 has 32 divisors (see below), whose sum is σ = 62270208. Its totient is φ = 11086000.

The previous prime is 30489247. The next prime is 30489293. The reversal of 30489250 is 5298403.

30489250 = T₆₈ + T₆₉ + ... + T₅₆₇.

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, 2794 + ... + 8293.

It is an arithmetic number, because the mean of its divisors is an integer number (1945944).

Almost surely, 2^30489250 is an apocalyptic number.

30489250 is an abundant number, since it is smaller than the sum of its proper divisors (31780958).

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

30489250 is a wasteful number, since it uses less digits than its factorization.

30489250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11115 (or 11105 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 30489250 is about 5521.7071635501. The cubic root of 30489250 is about 312.4032767325.

The spelling of 30489250 in words is "thirty million, four hundred eighty-nine thousand, two hundred fifty".