30845740 has 24 divisors (see below), whose sum is σ = 68186160. Its totient is φ = 11688768.

The previous prime is 30845707. The next prime is 30845743. The reversal of 30845740 is 4754803.

It is a super-3 number, since 3×30845740³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (30845743) 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, 40207 + ... + 40966.

It is an arithmetic number, because the mean of its divisors is an integer number (2841090).

Almost surely, 2^30845740 is an apocalyptic number.

It is an amenable number.

30845740 is an abundant number, since it is smaller than the sum of its proper divisors (37340420).

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

30845740 is a wasteful number, since it uses less digits than its factorization.

30845740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81201 (or 81199 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 30845740 is about 5553.8941293474. The cubic root of 30845740 is about 313.6161346993.

The spelling of 30845740 in words is "thirty million, eight hundred forty-five thousand, seven hundred forty".