30572144 has 10 divisors (see below), whose sum is σ = 59233560. Its totient is φ = 15286064.

The previous prime is 30572141. The next prime is 30572173. The reversal of 30572144 is 44127503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30572141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 955364 + ... + 955395.

It is an arithmetic number, because the mean of its divisors is an integer number (5923356).

Almost surely, 2^30572144 is an apocalyptic number.

It is an amenable number.

30572144 is a deficient number, since it is larger than the sum of its proper divisors (28661416).

30572144 is a wasteful number, since it uses less digits than its factorization.

30572144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910767 (or 1910761 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 30572144 is about 5529.2082615868. The cubic root of 30572144 is about 312.6861406233.

Adding to 30572144 its reverse (44127503), we get a palindrome (74699647).

The spelling of 30572144 in words is "thirty million, five hundred seventy-two thousand, one hundred forty-four".