30644796 has 144 divisors (see below), whose sum is σ = 94738560. Its totient is φ = 7620480.

The previous prime is 30644791. The next prime is 30644797. The reversal of 30644796 is 69744603.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30644791) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 145131 + ... + 145341.

Almost surely, 2^30644796 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 30644796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47369280).

30644796 is an abundant number, since it is smaller than the sum of its proper divisors (64093764).

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

30644796 is a wasteful number, since it uses less digits than its factorization.

30644796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 30644796 is about 5535.7742005974. The cubic root of 30644796 is about 312.9336350092.

The spelling of 30644796 in words is "thirty million, six hundred forty-four thousand, seven hundred ninety-six".