30070144 has 64 divisors (see below), whose sum is σ = 68372640. Its totient is φ = 13049856.

The previous prime is 30070123. The next prime is 30070147. The reversal of 30070144 is 44107003.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30070147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27757 + ... + 28819.

Almost surely, 2^30070144 is an apocalyptic number.

30070144 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30070144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34186320).

30070144 is an abundant number, since it is smaller than the sum of its proper divisors (38302496).

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

30070144 is a wasteful number, since it uses less digits than its factorization.

30070144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107 (or 1095 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 30070144 is about 5483.6250783583. The cubic root of 30070144 is about 310.9652328942.

Adding to 30070144 its reverse (44107003), we get a palindrome (74177147).

The spelling of 30070144 in words is "thirty million, seventy thousand, one hundred forty-four".