30707424 has 144 divisors (see below), whose sum is σ = 99066240. Its totient is φ = 9279360.

The previous prime is 30707419. The next prime is 30707441. The reversal of 30707424 is 42470703.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85357 + ... + 85715.

It is an arithmetic number, because the mean of its divisors is an integer number (687960).

Almost surely, 2^30707424 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 30707424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49533120).

30707424 is an abundant number, since it is smaller than the sum of its proper divisors (68358816).

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

30707424 is a wasteful number, since it uses less digits than its factorization.

30707424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 30707424 is about 5541.4279748094. The cubic root of 30707424 is about 313.1466681552.

The spelling of 30707424 in words is "thirty million, seven hundred seven thousand, four hundred twenty-four".