30140572 has 24 divisors (see below), whose sum is σ = 65761920. Its totient is φ = 11742960.

The previous prime is 30140569. The next prime is 30140629. The reversal of 30140572 is 27504103.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48622 + ... + 49237.

It is an arithmetic number, because the mean of its divisors is an integer number (2740080).

Almost surely, 2^30140572 is an apocalyptic number.

It is an amenable number.

30140572 is an abundant number, since it is smaller than the sum of its proper divisors (35621348).

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

30140572 is a wasteful number, since it uses less digits than its factorization.

30140572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97881 (or 97879 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 30140572 is about 5490.0429870812. The cubic root of 30140572 is about 311.2078166301.

Adding to 30140572 its reverse (27504103), we get a palindrome (57644675).

The spelling of 30140572 in words is "thirty million, one hundred forty thousand, five hundred seventy-two".