30601140 has 48 divisors (see below), whose sum is σ = 87308928. Its totient is φ = 8005504.

The previous prime is 30601121. The next prime is 30601141. The reversal of 30601140 is 4110603.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30601141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1632 + ... + 7991.

It is an arithmetic number, because the mean of its divisors is an integer number (1818936).

Almost surely, 2^30601140 is an apocalyptic number.

30601140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30601140 is an abundant number, since it is smaller than the sum of its proper divisors (56707788).

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

30601140 is a wasteful number, since it uses less digits than its factorization.

30601140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9688 (or 9686 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 30601140 is about 5531.8297153835. The cubic root of 30601140 is about 312.7849645989.

Adding to 30601140 its reverse (4110603), we get a palindrome (34711743).

The spelling of 30601140 in words is "thirty million, six hundred one thousand, one hundred forty".