30489459 has 72 divisors (see below), whose sum is σ = 56077056. Its totient is φ = 14414400.

The previous prime is 30489457. The next prime is 30489479. The reversal of 30489459 is 95498403.

It is not a de Polignac number, because 30489459 - 2¹ = 30489457 is a prime.

It is a super-2 number, since 2×30489459² = 1859214220225362, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30489459.

It is not an unprimeable number, because it can be changed into a prime (30489457) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 429394 + ... + 429464.

It is an arithmetic number, because the mean of its divisors is an integer number (778848).

Almost surely, 2^30489459 is an apocalyptic number.

30489459 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

30489459 is a deficient number, since it is larger than the sum of its proper divisors (25587597).

30489459 is a wasteful number, since it uses less digits than its factorization.

30489459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 30489459 is about 5521.7260888240. The cubic root of 30489459 is about 312.4039905594.

The spelling of 30489459 in words is "thirty million, four hundred eighty-nine thousand, four hundred fifty-nine".