30440055 has 16 divisors (see below), whose sum is σ = 49208544. Its totient is φ = 16066560.

The previous prime is 30440041. The next prime is 30440083. The reversal of 30440055 is 55004403.

It is a happy number.

It is not a de Polignac number, because 30440055 - 2¹⁷ = 30308983 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9006 + ... + 11915.

It is an arithmetic number, because the mean of its divisors is an integer number (3075534).

Almost surely, 2^30440055 is an apocalyptic number.

30440055 is a deficient number, since it is larger than the sum of its proper divisors (18768489).

30440055 is a wasteful number, since it uses less digits than its factorization.

30440055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21026.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 30440055 is about 5517.2506740223. The cubic root of 30440055 is about 312.2351633537.

Adding to 30440055 its reverse (55004403), we get a palindrome (85444458).

The spelling of 30440055 in words is "thirty million, four hundred forty thousand, fifty-five".