30769398 has 48 divisors (see below), whose sum is σ = 76564800. Its totient is φ = 8832240.

The previous prime is 30769373. The next prime is 30769441. The reversal of 30769398 is 89396703.

It is a happy number.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

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 23 ways as a sum of consecutive naturals, for example, 328 + ... + 7851.

It is an arithmetic number, because the mean of its divisors is an integer number (1595100).

Almost surely, 2^30769398 is an apocalyptic number.

30769398 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30769398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38282400).

30769398 is an abundant number, since it is smaller than the sum of its proper divisors (45795402).

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

30769398 is a wasteful number, since it uses less digits than its factorization.

30769398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8217 (or 8214 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 30769398 is about 5547.0170362096. The cubic root of 30769398 is about 313.3571917349.

The spelling of 30769398 in words is "thirty million, seven hundred sixty-nine thousand, three hundred ninety-eight".