30140052 has 24 divisors (see below), whose sum is σ = 72228576. Its totient is φ = 9775008.

The previous prime is 30140041. The next prime is 30140057. The reversal of 30140052 is 25004103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30140057) 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, 33498 + ... + 34385.

It is an arithmetic number, because the mean of its divisors is an integer number (3009524).

Almost surely, 2^30140052 is an apocalyptic number.

It is an amenable number.

30140052 is an abundant number, since it is smaller than the sum of its proper divisors (42088524).

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

30140052 is a wasteful number, since it uses less digits than its factorization.

30140052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67927 (or 67925 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 30140052 is about 5489.9956284136. The cubic root of 30140052 is about 311.2060269163.

Adding to 30140052 its reverse (25004103), we get a palindrome (55144155).

The spelling of 30140052 in words is "thirty million, one hundred forty thousand, fifty-two".