30025989 has 12 divisors (see below), whose sum is σ = 49566816. Its totient is φ = 17157672.

The previous prime is 30025979. The next prime is 30025993. The reversal of 30025989 is 98952003.

It is not a de Polignac number, because 30025989 - 2⁴ = 30025973 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30025939) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 238239 + ... + 238364.

It is an arithmetic number, because the mean of its divisors is an integer number (4130568).

Almost surely, 2^30025989 is an apocalyptic number.

It is an amenable number.

30025989 is a deficient number, since it is larger than the sum of its proper divisors (19540827).

30025989 is a wasteful number, since it uses less digits than its factorization.

30025989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476616 (or 476613 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 30025989 is about 5479.5975217164. The cubic root of 30025989 is about 310.8129512152.

The spelling of 30025989 in words is "thirty million, twenty-five thousand, nine hundred eighty-nine".