30010240 has 64 divisors (see below), whose sum is σ = 77283360. Its totient is φ = 11077632.

The previous prime is 30010229. The next prime is 30010241. The reversal of 30010240 is 4201003.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×30010240² = 1801229009715200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30010241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6517 + ... + 10123.

Almost surely, 2^30010240 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 30010240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38641680).

30010240 is an abundant number, since it is smaller than the sum of its proper divisors (47273120).

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

30010240 is a wasteful number, since it uses less digits than its factorization.

30010240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3639 (or 3627 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 30010240 is about 5478.1602751289. The cubic root of 30010240 is about 310.7585999747.

Adding to 30010240 its reverse (4201003), we get a palindrome (34211243).

The spelling of 30010240 in words is "thirty million, ten thousand, two hundred forty".