30044155 has 12 divisors (see below), whose sum is σ = 36430992. Its totient is φ = 23785680.

The previous prime is 30044153. The next prime is 30044171. The reversal of 30044155 is 55144003.

It is not a de Polignac number, because 30044155 - 2¹ = 30044153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30044153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96450 + ... + 96760.

It is an arithmetic number, because the mean of its divisors is an integer number (3035916).

Almost surely, 2^30044155 is an apocalyptic number.

30044155 is a deficient number, since it is larger than the sum of its proper divisors (6386837).

30044155 is an equidigital number, since it uses as much as digits as its factorization.

30044155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 30044155 is about 5481.2548745702. The cubic root of 30044155 is about 310.8756201448.

Adding to 30044155 its reverse (55144003), we get a palindrome (85188158).

The spelling of 30044155 in words is "thirty million, forty-four thousand, one hundred fifty-five".