30745700 has 36 divisors (see below), whose sum is σ = 67256112. Its totient is φ = 12199200.

The previous prime is 30745691. The next prime is 30745751. The reversal of 30745700 is 754703.

It is a self number, because there is not a number n which added to its sum of digits gives 30745700.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 11927 + ... + 14273.

Almost surely, 2^30745700 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 30745700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33628056).

30745700 is an abundant number, since it is smaller than the sum of its proper divisors (36510412).

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

30745700 is a wasteful number, since it uses less digits than its factorization.

30745700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492 (or 2485 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 26.

The square root of 30745700 is about 5544.8805217065. The cubic root of 30745700 is about 313.2767238408.

The spelling of 30745700 in words is "thirty million, seven hundred forty-five thousand, seven hundred".