30798768 has 160 divisors (see below), whose sum is σ = 106993152. Its totient is φ = 7372800.

The previous prime is 30798743. The next prime is 30798787. The reversal of 30798768 is 86789703.

It is a super-2 number, since 2×30798768² = 1897128220635648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47728 + ... + 48368.

Almost surely, 2^30798768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30798768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53496576).

30798768 is an abundant number, since it is smaller than the sum of its proper divisors (76194384).

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

30798768 is a wasteful number, since it uses less digits than its factorization.

30798768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683 (or 677 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 30798768 is about 5549.6637735993. The cubic root of 30798768 is about 313.4568619119.

The spelling of 30798768 in words is "thirty million, seven hundred ninety-eight thousand, seven hundred sixty-eight".