30699344 has 40 divisors (see below), whose sum is σ = 65803080. Its totient is φ = 13782528.

The previous prime is 30699341. The next prime is 30699359. The reversal of 30699344 is 44399603.

It can be written as a sum of positive squares in 4 ways, for example, as 4892944 + 25806400 = 2212^2 + 5080^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30699298 and 30699307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30699341) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5702 + ... + 9690.

It is an arithmetic number, because the mean of its divisors is an integer number (1645077).

Almost surely, 2^30699344 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 30699344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32901540).

30699344 is an abundant number, since it is smaller than the sum of its proper divisors (35103736).

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

30699344 is a wasteful number, since it uses less digits than its factorization.

30699344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4047 (or 4041 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 38.

The square root of 30699344 is about 5540.6988728860. The cubic root of 30699344 is about 313.1191998028.

The spelling of 30699344 in words is "thirty million, six hundred ninety-nine thousand, three hundred forty-four".