30675140 has 48 divisors (see below), whose sum is σ = 69092352. Its totient is φ = 11398656.

The previous prime is 30675137. The next prime is 30675143. The reversal of 30675140 is 4157603.

It is an interprime number because it is at equal distance from previous prime (30675137) and next prime (30675143).

It is not an unprimeable number, because it can be changed into a prime (30675143) 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, 27677 + ... + 28763.

It is an arithmetic number, because the mean of its divisors is an integer number (1439424).

Almost surely, 2^30675140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30675140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34546176).

30675140 is an abundant number, since it is smaller than the sum of its proper divisors (38417212).

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

30675140 is a wasteful number, since it uses less digits than its factorization.

30675140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196 (or 1194 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 30675140 is about 5538.5142412022. The cubic root of 30675140 is about 313.0368882749.

The spelling of 30675140 in words is "thirty million, six hundred seventy-five thousand, one hundred forty".