30032040 has 32 divisors (see below), whose sum is σ = 90096480. Its totient is φ = 8008512.

The previous prime is 30032039. The next prime is 30032053. The reversal of 30032040 is 4023003.

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, 125014 + ... + 125253.

It is an arithmetic number, because the mean of its divisors is an integer number (2815515).

Almost surely, 2^30032040 is an apocalyptic number.

30032040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30032040 is an abundant number, since it is smaller than the sum of its proper divisors (60064440).

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

30032040 is a wasteful number, since it uses less digits than its factorization.

30032040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250281 (or 250277 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 30032040 is about 5480.1496329936. The cubic root of 30032040 is about 310.8338287161.

Adding to 30032040 its reverse (4023003), we get a palindrome (34055043).

The spelling of 30032040 in words is "thirty million, thirty-two thousand, forty", and thus it is an eban number.