30553140 has 48 divisors (see below), whose sum is σ = 90054720. Its totient is φ = 7718400.

The previous prime is 30553129. The next prime is 30553141. The reversal of 30553140 is 4135503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30553141) 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 15 ways as a sum of consecutive naturals, for example, 12261 + ... + 14540.

It is an arithmetic number, because the mean of its divisors is an integer number (1876140).

Almost surely, 2^30553140 is an apocalyptic number.

30553140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30553140 is an abundant number, since it is smaller than the sum of its proper divisors (59501580).

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

30553140 is a wasteful number, since it uses less digits than its factorization.

30553140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26832 (or 26830 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 30553140 is about 5527.4894843862. The cubic root of 30553140 is about 312.6213374144.

Adding to 30553140 its reverse (4135503), we get a palindrome (34688643).

The spelling of 30553140 in words is "thirty million, five hundred fifty-three thousand, one hundred forty".