30269808 has 80 divisors (see below), whose sum is σ = 89056800. Its totient is φ = 9838080.

The previous prime is 30269791. The next prime is 30269821. The reversal of 30269808 is 80896203.

It is a super-2 number, since 2×30269808² = 1832522552713728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16858 + ... + 18566.

It is an arithmetic number, because the mean of its divisors is an integer number (1113210).

Almost surely, 2^30269808 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 30269808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44528400).

30269808 is an abundant number, since it is smaller than the sum of its proper divisors (58786992).

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

30269808 is a wasteful number, since it uses less digits than its factorization.

30269808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1767 (or 1755 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 30269808 is about 5501.8004325857. The cubic root of 30269808 is about 311.6519788071.

The spelling of 30269808 in words is "thirty million, two hundred sixty-nine thousand, eight hundred eight".