30398382450 has 54 divisors (see below), whose sum is σ = 81680258829. Its totient is φ = 8105249040.

The previous prime is 30398382449. The next prime is 30398382491. The reversal of 30398382450 is 5428389303.

30398382450 is a `hidden beast` number, since 30 + 3 + 98 + 3 + 82 + 450 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 29790414801 + 607967649 = 172599^2 + 24657^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=123285.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 30398382396 and 30398382405.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3694441 + ... + 3702659.

Almost surely, 2^30398382450 is an apocalyptic number.

30398382450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30398382450 is an abundant number, since it is smaller than the sum of its proper divisors (51281876379).

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

30398382450 is an frugal number, since it uses more digits than its factorization.

30398382450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16456 (or 8229 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 30398382450 in words is "thirty billion, three hundred ninety-eight million, three hundred eighty-two thousand, four hundred fifty".