30031140 has 24 divisors (see below), whose sum is σ = 84087360. Its totient is φ = 8008288.

The previous prime is 30031063. The next prime is 30031201. The reversal of 30031140 is 4113003.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250200 + ... + 250319.

It is an arithmetic number, because the mean of its divisors is an integer number (3503640).

Almost surely, 2^30031140 is an apocalyptic number.

30031140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30031140 is an abundant number, since it is smaller than the sum of its proper divisors (54056220).

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

30031140 is a wasteful number, since it uses less digits than its factorization.

30031140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500531 (or 500529 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 30031140 is about 5480.0675178322. The cubic root of 30031140 is about 310.8307236630.

Adding to 30031140 its reverse (4113003), we get a palindrome (34144143).

The spelling of 30031140 in words is "thirty million, thirty-one thousand, one hundred forty".