30004155 has 32 divisors (see below), whose sum is σ = 54259200. Its totient is φ = 15726816.

The previous prime is 30004147. The next prime is 30004193. The reversal of 30004155 is 55140003.

It is not a de Polignac number, because 30004155 - 2³ = 30004147 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6082 + ... + 9848.

It is an arithmetic number, because the mean of its divisors is an integer number (1695600).

Almost surely, 2^30004155 is an apocalyptic number.

30004155 is a deficient number, since it is larger than the sum of its proper divisors (24255045).

30004155 is a wasteful number, since it uses less digits than its factorization.

30004155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3840 (or 3834 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 30004155 is about 5477.6048597905. The cubic root of 30004155 is about 310.7375949899.

Adding to 30004155 its reverse (55140003), we get a palindrome (85144158).

The spelling of 30004155 in words is "thirty million, four thousand, one hundred fifty-five".