30044040 has 64 divisors (see below), whose sum is σ = 97070400. Its totient is φ = 7395072.

The previous prime is 30044033. The next prime is 30044051. The reversal of 30044040 is 4044003.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8070 + ... + 11189.

It is an arithmetic number, because the mean of its divisors is an integer number (1516725).

Almost surely, 2^30044040 is an apocalyptic number.

30044040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30044040 is an abundant number, since it is smaller than the sum of its proper divisors (67026360).

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

30044040 is a wasteful number, since it uses less digits than its factorization.

30044040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19286 (or 19282 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 30044040 is about 5481.2443842617. The cubic root of 30044040 is about 310.8752234982.

Adding to 30044040 its reverse (4044003), we get a palindrome (34088043).

The spelling of 30044040 in words is "thirty million, forty-four thousand, forty", and thus it is an eban number.